Dec 1 Word of the Day
"Man fuck Donald trump, he wants to build a wall and don't pay taxes!!"
by January 30, 2017
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2
in Mathematics and Physics IFF stands for " if and only if ".
For P(x), IFF P(a)=0, then (x-a) is a factor of P(x).
by arysmart May 19, 2013
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3
i'm fucked foundation- I.F.F

...derived from the G.F.F, Grenade Free Foundation
"Ronny is officially part of the IFF" -The situation
by lovelybuttons45 August 06, 2010
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4
An organization know as the I'm Fucked Foundation.
Ronnie Magro is currently president, CEO, and founder of this establishment by stuffing his face in a cocktail waitress' tits and then making out with two other chicks.
I joined the IFF today by fucking my best friend's sister.
by icedemon25 September 03, 2010
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5
I.F.F.

I'm Fucked Foundation Used on Jersey Shore
Yetta: Oh man last night ugh, I.F.F.
Sheffield: Oh okay...... Whore.
by Killlerkitten August 06, 2010
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6
Stands for: I'm Fucked Foundation

A phrase used by Pauly D from the "Jersey Shore Season 2" in regards to Ronnie who hooked up with grenades and proceeded to sleep in Sammie's bed.
Shit man, I'm in the I.F.F. I just cheated on my girlfriend.
by naomis August 06, 2010
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