I.F.F.F. 

Internal Female Functioning Failure - A breakdown in the reason and ration governing areas in the mind of a female, causing paranoia, delusions, and causing violent mood swings to either an agitated or despondent state.

Fiona Apple, Mariah Carey, Angelina Jolie. and every girl you ever broke up with all clearly have I.F.F.F.

I.F.F.F. by bigolhippy February 19, 2009

I.F.F. 

I.F.F.

I'm Fucked Foundation Used on Jersey Shore

Yetta: Oh man last night ugh, I.F.F.
Sheffield: Oh okay...... Whore.

I.F.F. by Killlerkitten August 6, 2010

I.F.F. 

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.

I.F.F. by naomis August 7, 2010

E.I.F.F. 

is an acronym for 'Easily Identifiable Fat Friend.'

Known to be included in a circle of sexy ladies in order to pronounce their good looks.

"Look at the group 5 sexy ladies and the E.I.F.F."

E.I.F.F. by tndcrs December 21, 2008

D.I.F.F. 

A person who is willing to
Do.It.For.Free
A ho...skank..or just someone who'll lick their lips
while droppin it to the floor

Ashley: Hey invite her to your party

Jessica: Hell no..shes such a d.i.f.f., she'll probably
dance on the tables and take everyone back to her hotel..that ho

D.I.F.F. by D.I.F.F. Headquarters June 24, 2008

B.I.F.F. 

Bitch I Fuck Frequently

yo mama is my B.I.F.F.

B.I.F.F. by PimpDaddy LongNutz December 23, 2010

I.F.O.F.F. 

International Federation Of Father Fuckers.
See Fatherfucker
People into Rap/Hip Hop seem to get really annoyed when someone says Fatherfucker. Not any more offensive than the term Motherfucker

Are the Mother Fuckers ready for the Father Fuckers - a line from the Album "FatherFucker" by Peaches.

I.F.O.F.F. by Spotsaneed June 14, 2004