G.I. 

Government Issue. What soldiers in W.W.II began to call themselves.

Wow!!! Those G.I.'s were so amazingly brave!!!

G.I. by Black Hat1234 March 20, 2010

G.I. 

Gary Indiana..Murder CAP...ghetto ass place to the max

I'm reppin' G.I.

I hail from G.I.

G.I. by JaYmE aka WiFeY February 12, 2006

G.I. 

acronym for Giggling Internally. not fucking Laugh Out Loud (which people never do when they say 'LOL').

sneakerhead93: That's what she said.
iDidYourMom: G.I.
sneakerhead93: wtf?
iDidYourMom: GI. It means I didn't actually laugh out loud; I just Giggled Internally.
sneakerhead93: oh.
iDidYourMom: yeah, that shit wasn't that funny.

G.I. by pseudonym_goes_here August 7, 2009

G.I. 

1) Geographically Impossible

1) "You can't be with her man, you live in the City & she lives in the sticks. Its G.I.

2) Mr Money: "I'm moving to NY but, I'm a still run tha drugs down south"
Dr Drugmoney: "You can't do that, its G.I.

(NOTE) The murder Capital is New York.

G.I. by Szymn. M August 4, 2006

G.I. 

Geographically impossible.

When dating, there's a realisation that a potential partner won't work due to your differing locations.

How'd your date go? Super well, but a g.i. so on to the next one...she's in New York, I'm in Austin, TX

G.I. by p00lm8 August 27, 2021

G.I 

Short for Gary Indiana, usually used by natives.

Dude 1 : Yo how you been ?

Dude 2 : OK, just hanging wit my homies from G.I.

G.I by ComminCents February 24, 2023

G.I. gin

Cough medicine with alcohol and codeine. In the 1960s and 1970s, soldiers complaining of a cold were issued a small bottle of cough medicine. It contained alcohol an codeine. Many drank it down for the buzz.

Go to the medics and get yourself a bottle of G.I. gin. It's great on a cold day like this.

He is useless once he gets some of that G.I. gin.

G.I. gin by Uncle Thor January 15, 2013