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1. GFF
Grenade Free Foundation- a place with no ugly or fat girls (known as grendades) allowed usual refered to on Jersey Shore.
Pauly D: "Oh shit this guy doesn't know this is a GFF. Someone should tell his girlfriend."
2. GFF
Girl Friend Forever.
A play on BFF or best friend forever. Basically implies that you'll never marry the person your with but still reap the benefits of being married without the commitment.
I love Susan but we'll never get married, she's my GFF.
3. GFF
Gluten Free Friend
My GFF shops the Gluten Free aisle at Kroger.

GFF's don't let friends have wheat bellies.
4. GFF
Get Fucked Fridays: fridays at work where you get fucked by your job by making you stay late or give you huge workloads or unveil huge projects that could have been started monday but no your boss is a dick and waited til friday.
person walks into work: good morning everyone looks like its another gff!
5. GFF
Give a Fuck Factor; the level to which one gives a fuck, often measured on a scale from 0 to 100.
McDonald's patron #1: Excuse me, I had ordered a Big Mac, not a salad.

Laqueesha: <silence, examines fake nails>

McDonald's patron #1: Ummm...excuse me, miss? I had wanted a burger???

Laqueesha: <silence>

McDonald's patron #2: Dude, just give up. Her GFF is obviously 0.
6. GFF
GFF Gordon Freedom Fighters A biggest gang in North Shore of Sydney, specializing in crashing parties of privet school boys such as Barker College - little brothers crew came after them.
trade marks, giving wedgies to 18 years old sisis!
by gff Mar 10, 2004 add a video
7. GFF
GFF= Greasy Fat Fuck
Billy weighed 380 pounds, and he was a gff.
by Willis Dec 18, 2004 add a video
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