GAF 

GAF is an acronym for:

Goofy As Fuck

Dude, that guy's a total GAF.

GAF by pwnlok March 8, 2008

Gaf 

In order for stupid guys to not know what we are talking about me and my friends made up the word gaf. It originally stood for "gay fag" but someone bought it to my attention that then that would be "gafa". so ive decided that its just fag spelled backwards =]

Susan: look at that guy over there in those tight ass jeans! They look like his little sisters!
Laura: I know! he is SUCH a gaf.

Gaf by gaflover92393 April 16, 2008

GAF 

Acronym for "Grunge-As-Fuck"
Various items of clothing can be referred to as GAF. Some of these include Check shirts, Aviators, Chuck Taylor Hi-tops, and Wooly Beanies with Pom-poms hanging from the top, and two ears.
People that refer to themselves as GAF must be beaten unless they regularly wear 3 of these simultaneously.
Also popular with those of the GAF, is listening to the musical stylings of grunge bands such as Nirvana, doing a good ol' Hoedown, hunting Orc, and going for a fish.

*You see some dude walking past with aviators, chucks, a check shirt and a nirvana bumbag*
"Holey shit that's GAF"
you may only get away with saying "GAF-as-fuck" if you are severely intoxicated.

GAF by Benjiman-Skullfuck January 13, 2009

GAF 

"GAF" stands for Grade-Above-Factor. When a girl goes out with a boy from a higher grade.

That girl is a GAF. She's only a freshman and she's going out with a Junior.

GAF by Fuck the Bitches Get the Money December 13, 2009

GAF 

In the Air Force in the 1960s we used GAF for Give a Fuck, but the joke was the Go Air Force posters we saw.

Also DILLIGAF was an extension that we used: "Do I Look Like I Give A Fuck?"

DILLIGAF Do I Look Like I Give A Fuck?

GAF by Shale Stone December 21, 2016

Gaf 

When someone heterosexual describes something (usually a joke) that is or relates to homosexuality when in reality the person describing is not homosexual.

I can't believe Manuel & Caleb were making some Gaf ass jokes in front of their girlfriends at the party yesterday.

Gaf by CoffeeFart August 11, 2017

Gaf 

Offence word for a dirty penis

Kelly: omg Gina, David has a gaf

Gina: no way you’re kidding! That’s so gross

Gaf by dizon onzdis June 10, 2018