I.T.F. (Eye-Tee-Ef) - Impossible to Fuck. Used to refer to a woman that is so unbelievably unattractive that when you finally drink enough to not give a shit you are suffering from whiskey-dick.
This term is not to be used lightly, when you call someone an ITF you are condemning them to a life of never being fucked by you.
"This club fucking sucks. We are surrounded by ITFs!"
S.F.C - Suck Face City. Usually uttered when viewing attractive women with whom you would like to penetrate.
Man - "Whoa, SFC."
Other Man - "What? You're fucking retarded."