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."
by Definition Maker #9812 September 16, 2018
Get the mug
Get a ISTG mug for your brother Manley.
I was walking down the street this morning and istg i saw someone that looked exactly like you
by Truxkmayne September 13, 2018
Get the merch
Get the Istg neck gaiter and mug.
ISTG is the short form of "I swear to God" Also means I promise.
ISTG that microorganism is not my boyfriend!!!
by Nlovespastel April 13, 2019
Get the mug
Get a ISTG mug for your brother James.
ISTG is short for “I Swear Too God
Rick: ISTG if Bill isn’t hear soon I’ll hack his roblox account
by ShitCuntfromStraya December 30, 2018
Get the merch
Get the ISTG neck gaiter and mug.