GF

Common acronym for one's grandfather.

Dude: Your GF has nice tits.
Lesbian girl: Thanks, I'll tell my grandfather about your kind words.

gf

You type gf when your too lazy to write out girlfriend.

random guy-wow you have a pretty gf.

GF

George Foreman (Grill)

So I come home tonight after a night out and in my kitchen, I catch my father redhanded with his meat in my GF. I was pissed and told him to take his meat out of my GF and get out. I just couldn't get over it and kicked the GF to the curb.

GF

1. Chatting: Short for "Girl Friend"
2. Gaming: Jedi-Outcast: "Good Fight." usually said after a Lightsaber duel.

GF

Good Fight. An "understood you" exclamation congratulating another in any form of online competiton. Modernly used as a sarcastic expression poking fun at a situation.

myspacebarisbroken.gf.

GF

Online abbreviation for girlfriend. Sometimes misunderstod as goldfish.

Guy1: hey man hows your gf?
Guy2: wtf? gf? goldfish?
Guy1: you suck

gf

Means get fucked

Is used when you need to say something rude to someone in the presence of others. it is then appropriate to use gf.