Complaint Of Patient Data C. It’s similar to the term ‘ONG. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. The media could not be loaded, either because the server or network failed or because the format is not supported. What Does Istg Mean In Text? I swear to God ISTG means “I swear to God. Every TikTok user's FYP. By using “ISTG,” individuals can emphasize the sincerity or truthfulness of their statements, especially when sharing surprising facts or. In summary, ISTG is an acronym widely used in informal online communication. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. It can be used to express emotions, surprise, or sudden kind of feelings. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness. For example, if someone decides to message you with insulting comments about your hair, then you might reply with "STFU. . This phrase has a couple of variants, S2G and ISTG, and is frequently used in texting or on social media. More violent then just I Swear To God Learn what ISTG means in this quick and easy guide! Find out what the abbreviation stands for and how to use it in real life with this simple explanation. But while the slang term ISTG is harmless, other teenage slang terms could indicate that your teen is talking about risky behaviors or communicating with potentially dangerous people. Promise. Social media platforms: Snapchat, Instagram, Twitter, TikTok, and more. ISTG is an abbreviation commonly used in text messaging and online communication, particularly among younger generations. ISTG is simply an acronym that means I swear to God. Like, "ISTG, if I get one more. "I swear to. ISTG. Some of these words and acronyms are used on other video games and social media platforms too. TLDR meaning: too long; didn't read. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It’s an acronym that people use to express the seriousness of a situation or to emphasize that they are not joking. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. Start the day smarter. ISTG is often used in informal conversations, texting, and on social media platforms. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG stands for “I swear to God. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. LFG meaning: let's freaking go. The ISTG acronym is commonly used in response to a person who doubts something that you said. FYP means For You Page. OFC meaning: of course. This expression is used to emphasize the truthfulness or seriousness of a statement. ISTG is used to express frustration or annoyance at something or to show emphasis on a statement. Expand Your Lexicon: Discover 5+ Similar Words for ISTFG When it comes to texting, understanding similar. Looking for online definition of ISTG or what ISTG stands for? ISTG is listed in the World's most authoritative dictionary of abbreviations and acronyms ISTG - What does ISTG stand for?Definition of the term. ”. In contrast to standard text or audio messaging apps, Snapchat offers the unique ability to share fleeting live video messages that vanish as soon as they are. It is commonly used in text messaging to express the seriousness of a situation or to assure that a statement is not a joke. If you see someone using ISTG when texting, they’re probably emphasizing how serious they are about something. "I swear to. ”. suggest new definition. Prison gang. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. “I swear to God” is a common phrase that people use to show that they are telling the truth or to express their sincerity. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. The”I” is the person who is saying it, while”F” is an expletive “F” can be an exclamation point added to the expression. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious. The ISTG definition includes a short acronym for a phrase that reads as ‘I Swear To God’. In conclusion, “ISTG” is an acronym that stands for “I swear to God. ISTG and OMG can also be used interchangeably often. This phrase can be used to swear truthfully without having to use a more serious swear word, such as the word "God". Sub the Gamer security threat group. What Does Istg Mean? The acronym ISTG stands for “I swear to God. The expression “I swear to God” is used for centuries and originates directly from the Old English word “swear” which means swearing. The Meaning of ISTG in Text. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages, social media posts, and online forums. " ISTG is used to add emphasis to a statement (usually a promise, threat,. ”. This phrase is typically employed to express surprise, disbelief or concern over a given situation. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. Even though the phrase includes “God,” its meaning and uses aren’t considered religious. Specifically, as internet usage is increasing daily,. The term comes from “shipping” within fandom culture. " The abbreviation ILYSM is used with the meaning "I Love You So Much" as an expression of affection. I swear to fucking god. This should not be used in any formal setting, no matter how informal it may seem, via social media or text. OTP meaning: one true pairing (a couple that fans prefer to all other. What Does ISTG Mean? Introduction. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. It is an expression used to emphasize the truthfulness or sincerity of a statement. Usually used after saying something ‘cool’. ISTG is short for "I swear to God. ISTG stands for I Swear To God. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. ISTG is a slang abbreviation used in online messaging and texting that means 'I swear to God. ISTG Meaning= Expression of Disbelief4. ABC means asking another player (or telling another player you’re ready) to make an offer, trade or perform a task in Roblox, such as roleplaying in a game. It can be used to convey sincerity, make promises, express annoyance, and more. It is a commonly used slang expression used to emphasize that someone is telling the truth, or to add emphasis to a statement. Person1: I'm so exhausted. IYKYK meaning: if you know, you know. ISTFG means “I Swear To Fing God” and is typically used in informal texting to express frustration or disbelief. The phrase originated as a method for people to express a greater level of certainty about a statement they’re making in a conversation. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. Essentially, ISTG is a shortcut way of saying "I. ISTG Meaning What Does “ISTG” Stand For? If you’ve ever seen “ISTG” in a text message or on social media, you might be wondering what it means. ISTG Meaning. ETA meaning: estimated time of arrival. It is a reference to swearing or commitment to God that is not something to take lightly as it is a risk that the person who is saying it could be punished in the event of lying. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTJ types like to have clear goals and realistic deadlines, and to work with factual data to solve problems and monitor progress. The “baby” part of the phrase isn’t a literal reference to a child, and. What does LFG ð mean? LFG as “let’s freaking go” has since become widespread in texts among friends as a way to excite or “hype up” one another about a particular event or situation. Key Takeaways: ‘ISTG’ stands for “I Swear To God” and is commonly used in text messages and online chat. Throughout the years, a variety of terms have arisen which make it easier to communicate online. It could be used to show how excited they are or to express. ”. 1 definitions of ISTG. When someone uses ISTG, they are essentially emphasizing. Well, fret not – I’m here to help unravel the mystery for you. Read Also: What does CFS mean on Instagram? Common Uses for ISTG . In a different context, “sw” can also mean “someone who. Specifically, as internet usage is increasing daily, people. Definition of ISTG in Slang/Internet Slang. Gunna explained that the ‘P’ stands for ‘player,’ although it can also stand for. ISTG stands for “I swear to God” in texts and on social media apps. It comes from the courtroom oath that traditionally said, “i swear by almighty god that the evidence i shall give shall be the truth, the whole truth, and nothing but the truth. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. Whenever a TikTok user opens their app, they are directed to their For You Page, which is a stream of videos that TikTok thinks that user will like. ” How to understand Texting Abbreviations!! LOL and LMAO, SMH, FFS… and all the other ISTG Meaning A short video summarzing the most common. TLDR meaning: too long; didn't read. 2006)Texting with friends is the best way to use this term. What does STG mean?U Jelly is often used to goad someone online or in-person because you possess an article that they do not have, or because you have attained some kind of gamer achievement or minor online fame. There needs to be a TikTok user manual that includes a glossary because new abbreviations and slang words are constantly being churned out and I, a millennial, cannot keep up. HMU meaning: hit me up. ”. The term is primarily used to emphasize a point you’re making and can reiterate anger or annoyance. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. It is often used in informal conversations, especially when expressing frustration or disbelief. Meaning. "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're. ISTG means I swear to God. This expression is most likely something you've heard in ordinary conversation. – What does istg Mean in Text – ISTG is a popular online abbreviation among today’s youth. ” Origin of ISTG. This phrase is often used on social media while making public posts or in private chats. It is commonly. ISTG is an acronym that stands for “I Swear To God”. ATP meaning: answer the phone. It can also be used as an expression of sincerity, such as when a user is making a promise or expressing their. What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. Jamie Grill / Getty. ISTG has multiple definitions that can be used in various settings. 2. Simply put, “ISTG” stands for “ I swear to God . Correct: ISTG Correct: istg Incorrect: iSTG Usage Use of the abbreviation can be found in the following places. ONB is an abbreviation commonly used in texting, which stands for “Oh No Baby”. It can often. STG: You can swear to god when you are frustrated or in exacerbation. Similar to “I Swear To Fucking God” istfg, in that it is an escalation of the original term “I Swear To God” istg. As in, I swear that actually happened. 1 definitions of ISTG. However, as with many other abbreviations meaning "I love you," it should not. This abbreviation is commonly used in informal conversations on various digital platforms, such as text messages,. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. 查看翻译. ISTG is an acronym that is short for “I swear to God”. It can be used to convey extreme seriousness, exasperation, or surprise, and is usually used outside of a serious religious context. showing only Slang/Internet Slang definitions ( show all 7 definitions) Note: We have 1 other definition for ISTG in our Acronym Attic. Its meaning is “I Swear To God,” and it is commonly used to add sincerity or emphasis to a statement. “ISTG” stands for “I swear to God,” and it’s commonly used in texting to express the seriousness of a situation or to assure someone that you’re not joking when. ”. ” It is commonly used in text messaging and online chat to emphasize the truth or sincerity of a statement. This phrase should only be used in casual conversation. The phrase was later. FOMO meaning: the fear of missing out. This phrase is used to emphasize the truth of a statement or assertion. ”. The abbreviation “ISTG” is a shorthand. What does GM mean in text from a guy?What does df mean in texting? In the realm of texting and digital messaging, “df” usually stands for “da fuq”, a slang and casual form of saying “the fuck”. What does B) mean? Back when emojis weren’t a thing, ‘emoticons’ were used to add more emotions to the text. Start the day smarter. U Jelly has become a very popular expression, and because of its viral spreading nature, it has achieved meme status. What Does ISTG Mean In Texting? ISTG is an acronym used for “I Swear To God. This is a casual phrase that many people use both online and in real life (imagine someone exclaiming “I swear to God!” when they’re frustrated or emphasizing a point). ISTFG, if you don’t stop playing your music so loudly, I’m going to lose it. ISTG=Make a PromiseWhat Is ISTG Meaning in SlangIstg Slang Usage (Examples and Use Cases)ISTG Meaning on TikTokISTG Meaning SnapchatFAQs on ISTG Meaning1. ”. One such popular slang on platforms like Snapchat is ‘ISTG’. 2. Origin of ISTG. While it may seem like a phrase that you would use in casual conversation, it can be so much more than that. In summary, ISTG is an acronym widely used in informal online communication. It’s a widely used acronym in text messaging and online chatting on social networking sites. ISTG stands for “I swear to God” and is often used on Snapchat to emphasize a point or express strong emotion. ” It is often used to emphasise the truthfulness of a statement or convey the seriousness of a situation. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. You will find information about the origin and other possible meanings in all types of information on this acronym, including its. ISTG Meaning= ThreatUse Cases & Examples. This initialism should be avoided in professional situations or in conversing with someone who is religious. ISTG. Confused about slang like cap, HB, ATP, and more? We defined some popular TikTok acronyms for you. Simply put,. What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. How Is ISTG Used? Use Cases & Examples. It can be a powerful tool for self-motivation and encouragement. ISTG is commonly used in text messages and other social media conversations as a way to emphasize the truth or sincerity of a statement. It is commonly employed in informal chats, videos, and posts to show seriousness and truthfulness. ISTFG. I Swear to God. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). It is very similar to ISTFG meaning, however, there are additional letters added within the acronym. It’s a direct and sometimes blunt way of communicating that the information just shared doesn’t impress, affect, or matter to the person asking “so what. It's not typically used in a religious context. ISTG is an acronym that stands for ‘I Swear To God. A. It's a close relative of the OMG (Oh My God). It is typically used to show appreciation of an act of kindness by a loved one. What Does ISTG Mean? In internet chatting and text messaging, the acronym “istg” actually means the phrase “I swear to God. Annoyance and Assurance Another ISTG How to Use ISTG One of the hottest internet acronyms among today's teenagers is ISTG. It is an acronym used to emphasize a belief in or commitment to the truth of a statement. Alternatively, you might say ISTG to show exasperation or frustration at something someone is telling you. Swear to fucking god. ISTG is an acronym used in texting, which stands for “I swear to God. ISTG Meaning= Threat Use Cases & Examples. -ISTG that was the best pizza ever! -I put your racket back in your duffle bag istg. ISTG Unveiled: Introduction to the Slang. Here's what "ISTG" means and how you can use it in your next text exchange. One of the main uses of ISTG is in text messages or chats, either between friends or in a. Today, I'll walk you through what ISTG means in text. Guarantee. Today, I'll walk you through what ISTG means in text and other text. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. ” Kids often use this to express frustration or exasperation. Here's what this versatile slang term means and how you can use it in your messages and social media posts. Chronic Osteomyelitis Pathology Degree Embed Share an image of ISTFG » Click to view: Hearing impaired tip:. ISTG Meaning= Threat3. Capitalization The slang term and abbreviation “ISTG” is typically spelled in ALL CAPS or all lowercase letters. This abbreviation is typically used to express surprise, confusion, disbelief, or. It’s also like STG. "I swear to. ”. This initialism should be avoided in professional situations or in conversing with someone who is religious. Pinky promise. What does ISTG mean in the text? Ans. What does Istg mean in text message . For example, they might say “ISTG this homework sucks. ISTG meaning is “I Swear To God” and is one of the most widely used acronyms in the English language. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. This phrase is often used to express frustration or exasperation with a situation or to emphasize the sincerity of a statement. ISTG stands for: I Swear To God. It can be used as an exclamation, where users are expressing disbelief or shock. For example: What does ISTG mean? ISTG is an acronym that means I swear to God. One of the known acronyms is “ISTG” or “istg”. Meaning. It is a stronger version of the phrase “I swear”. What Does ISTG Mean In Texting? Snapchat represents a real-time multimedia communication platform that takes a step beyond traditional messaging applications. Since this is a very casual acronym, avoid using it in. Overall, the acronym STG stands for “swear to God. ISTG is an acronym used for “I Swear To God. " People use it in various places on the internet to tell someone to stop talking or as a gut reaction to something offensive or mean-spirited. Use Cases & Examples. This can be seen in phrases like: “ISTG, I’m always here for you” or “ISTG, I’ll never forget what you did for me”. So, the next time you see someone using “istg” in a message or post, you’ll know exactly what they mean. It's used express emotional sincerity or to seem intimidating. The slang abbreviation ISTG is frequently used as an interjection to express emotion or as an attestation of honesty. . What does istg mean in text. Usually, students or the young generation use this acronym. This is a group of teachers that are more than friends. Having a parental control app on your child’s phone will give you. Abbreviation of I Swear To Mother Fucking God. The abbreviation ISTG is widely used in text messaging and online chat with the meaning "I Swear To God. This initialism should be avoided in professional situations or in conversing with someone who is religious. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. ” This abbreviation is commonly used in informal conversations on various digital. "I swear to. B) used to be the symbol of a person wearing sunglasses with a smile on his face. Clear Of Patient Diagnosis B. In texting lingo, “istg” simply stands for “I Swear To God”. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. I Swear to God. This is only for close friends. They are there for each other on the good days and the bad days. IMO meaning: in my opinion. A very dramatic phrase to be used only in exceptional circumstances. While some text codes (like brb, lol, and omg) are simple ones that parents can understand, it can be difficult for parents to understand many codes teenagers use nowadays. It’s used to convey a deep sense of seriousness about a situation or to emphasize a point being made. Do you know what ISTG means in a text message? Watch this video to find out when to use ISTG in a text message and what it means!What Does “ISTG” Stand For? “ISTG” is an acronym that stands for “I Swear to God. It could be used to define the frustration or annoyance you might have towards something or somebody. This is a common acronym that is used online, typically in text-based communication. ’. ” Origin of ISTG. Definition of ISTG in Slang/Internet Slang. This is also very similar to. Chronic Obstructive Pulmonary Disease D. ”. ISTG is an acronym that means I swear to God. I swear to f**king god (ISTFG) is an abbreviation used to express exasperation, disbelief, or agreement. On the internet, there’s a lot of jargon and abbreviations that often confuse even the most seasoned internet user. HMU meaning: hit. ISTG can be used to express extreme seriousness, anger, or surprise, and is usually used outside of serious religious contexts. Page ContentsWhat Is ISTG Meaning1. ISTFG. It may sound like a new term to some, but this one is very familiar to social media users. It can be written in both lowercase “istg” and capital “ISTG” letters. When someone doubts something you said, using ISTG is a way to make a solemn oath that most people respect and are more likely to believe. ISTG Meaning. IYKYK meaning: if you know, you know. ”. Matching search results: Since the STG meaning is often expressed fully when in a verbal conversation, the term STG should only be used in casual conversations via text or on social media. Use ISTG to show you’re not joking about something, or to express annoyance or frustration with something (or someone). TikTok lingo is hard to keep up with. '. ISTFG. ILYSM can be used to express profound affection. 3. What does ISTFG mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: ISTFG. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. ISTG can be used in various contexts and can have different implications depending on the conversation. More violent then just I Swear To GodISTG is an acronym that is short for “I swear to God”. Going deeper into its meaning, ISTG sounds quite similar to OMG ‘Oh My God!’. Likewise, if you have ever seen the text code "ISTG" in texting and wondered what does ISTG mean in text. ”. new search. OFC meaning: of course. They prefer to work in traditional organisational environments, with people who take their. What does ISTG mean? ISTG means “I Swear To God”. 4. ”. Also, Check What Does SNM Mean In Texting? What Does ISTG Mean and How Is It Used in Real Context? The use of shortened phrases is a popular way to communicate in text messages and online conversations. Istfg Meaning Is: Istfg stands for “I Swear to Fucking God. ” Definition: Istfg is an acronym for “I swear to f Up. ISTG is an internet slang initialism that conveys earnestness, annoyance, or surprise. ISTG Meaning= Honesty or Certainty2. It is used to express frustration, anger, or disbelief. So, if you ever heard OMG (O My God), another popular acronym, ISTG won’t surprise you anymore. This acronym often highlights the sincerity, seriousness, or exasperation of the person using it. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. You might learn your child is using this slang term by chance when a text pops up on the phone screen. ISTG stands for "I Swear to God. The origin of ‘ISTG’ can be traced back to the phrase “I swear to God,” which. Testify. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. ABC – This doesn’t stand for anything. STFU is an acronym that means "shut the fuck up. This initialism should be avoided in professional situations or in conversing with someone who is religious. I just won the jackpot on the lottery ticket I bought yesterday, ISTFG! 5. When used in text conversations, ISTG retains its original meaning of “I swear to God. The phrase “I swear to God” has been used for hundreds of years and is basically taken from the Old English word “swear” which means an oath. It’s often used as an exclamation or a way to emphasize something and can be written in lower or upper case letters. It is commonly used as an exclamation or interjection. Usually, students or the young generation use this acronym. Avoid using this abbreviation in business or professional settings because it is so casual. " ISTG is used to add emphasis to a statement (usually a promise, threat, excuse or apology), or as an interjection which expresses surprise, skepticism or exasperation (similar to OMG ("Oh My God!") ). STG means different things to different people but its most common meaning is ‘Swear To God’. It can also be an expression of surprise or. Let’s talk about the other meanings of this common abbreviation and find out what it means for different people in different contexts. I swear to fucking god. Here’s what this multifaceted slang term means and how you may. GTFO can be used to express disbelief or displeasure. What does OTP mean in texting? “OTP” means “one true pair/pairing,” according to Merriam-Webster. ISTFG, I can’t believe she actually said that to me. This is also very similar to. I swear to God. Use Cases & Examples. Pushin P is a popular phrase in the Bay Area and Texas that was popularized by Atlanta rapper Gunna. By swearing to God, you make a sacred oath that most people respect more and therefore, are more. Usage: “Oh nice, you finally finished it! Welcome to the club B)” What does BB mean?What Does ISTG Mean in Texts or on Social Media? ISTG means “I swear to God” in text messages and on social media platforms like TikTok, Snapchat, Twitter, Instagram, and more. It represents an empathetic or mildly shocked response to unexpected news or events. The phrase “so what” is often used to express indifference or dismissiveness about the topic at hand. Further Reading: What Does NFS Mean: Here Is All-inclusive Information You Need to Know. ISTG is simply an acronym that means I swear to God. The texting term ISTG, which means "I Swear To God," tells people that you really do mean what you're saying. Get all the news you need in your inbox each morning. It stands for “I swear to God. suggest new definition. The acronym ISTG is commonly used in text. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact. Summary: · The added I at the beginning just refers to the person that is saying this, so ISTG means “I Swear To God”. Get all the news you need in your inbox each morning. It can be used to express emotions, surprise, or sudden kind of feelings. " It is an internet acronym used in online chat to express frustration, surprise, or vehement assertion. ISTFG. Here’s our round-up of the latest Roblox slang. ISTFG means “I Swear To Fing God,” a phrase used to emphasize sincerity or seriousness when making a statement. ETA meaning: estimated time of arrival. You can use it to show your deep frustration, attest to the truth of something, or underline your beliefs. I’m beyond shocked. While the presence of the word “God” might indicate some religious connotation, it’s not a religious term at all. It’s also like STG. What Does ISTG Mean? ISTG is an acronym that stands for “I Swear to God”. ILYSM means "I Love You So Much. "I swear to God" isn't just texting slang – it's used in everyday conversations to emphasize the truth at hand. This. STFG stands for Super Teacher Friends Group. It is used to emphasize a statement, a promise, or a claim, to express frustration, or to make a solemn vow. For example, three sample text messages using the abbreviation ISTFG could be: 1. In simple terms, “istg” stands for “I swear to God,” a popular expression used to emphasize the truthfulness or intensity of a statement. " “ISTG” meaning over text message. You’ll find it all over the internet, from social media platforms like twitter and instagram to direct messages between friends. new search. "Meaning; ISTG: I Swear to God: ISTG: Immigrant Ships Transcribers Guild: ISTG: Information Storage Technology Group (University of Twente; Netherlands) ISTG: Inter-Site Topology Generator: ISTG: Implicit State Transition Graph: ISTG: Integrated Systems Tech Group (Tampa, FL) ISTG: Innovative Science and Technology Group (est. ISTG Meaning. What does 'ISTG' mean? "ISTG" stands for "I swear to God," an acronym usually used to express the seriousness of a situation or assure you're not joking when sharing a surprising fact.