IG 

I.G. Mostly means instagram but in some cases it means I guess. For example my Instagram is Hi_its_seth_ig meaning I guess but easily could be mistaken for Instagram.

Owen: Dude what’s your ig
Me/Seth: I think it’s Hi_its_seth_ig

Owen:ok thanks

IG by Im_aN_alChemiSt? May 6, 2019

ig 

Ig or I guess is the phrase used to respond to someone when they explain what you're doing but not exactly.

Person 1 "So you're playing 4 in a row with a robot?" Person 2 "ig"

ig by THG.385 September 25, 2021

IG 

Ig is the short form for instagram. It is much like facebook's short form Fb.

Clarence-Hey how are you?
Janet-Well my selfie on ig got tons of likes. I feel #famous

IG by missdarling December 4, 2015

IG 

An abbreviation of in-game.
To be in-game.

"You ig yet, -----?"
"I'm ig now"
"Your ig next."

IG by legitimately.awesome January 1, 2017

ig 

to forget, ignore

"just to ig my two-way, ig the shit in the streets"

ig by Jack Meoff December 20, 2003

IG 

Instagram

Guy 1:hey add me on ig
Guy 2:what does ig mean?
Guy 1:instagram
Guy 2:oh alright then ill add u

IG by Golden_Boy56798 July 30, 2017

ig 

A texting simplification, used to say "I guess" without typing out the words.

"yeah, ig that would work for me"
"ig we will find out"

ig by DaUltimateShape October 18, 2019