ISTG 

An acronym. Usually used in texting that stands for "I Swear To God".

"Ugh, She is such a whore, ISTG." or "ISTG i hate you."

ISTG by Definition Maker #9812 September 16, 2018

istg 

Means: I stan G-Dragon
and you should, too

"Ugh, istg so hard."
"What?"
"I stan G-Dragon, he is the best."

istg by gdmorelikegod May 26, 2020

Istg 

Usually used in texts, meaning " I swear to god "

Istg that teacher is so annoying :/

Istg by Sushi dushi 🍣 October 25, 2018

Istg 

I swear to god

I was walking down the street this morning and istg i saw someone that looked exactly like you

Istg by Truxkmayne September 13, 2018

istg 

Istg short for "I swear to god" usually in texts between girls or group chats

girl 1: oi u see (persons) tweet yesterday

girl 2: Literally

girl 3: nah what post

girl 4: Istg you didnt see that?

istg by Mushr0omElf September 29, 2022

ISTG 

meaning : i swear to God

Alex : BRO JAS IS HOT ASF

Naiasm : ISTG SHE IS

ISTG by xxxtentacionwife April 27, 2022

istg 

Abbreviation for 'I swear to God"

Samuel is so gay istg

istg by istg June 7, 2018