FAF

Formative as Fuck.
Yo Hector, that seminar on systems design was FAF.
by wordup_ February 23, 2017
mugGet the FAFmug.

FAF

Check that bird out she's FAF!
by Baltic11111 May 16, 2009
mugGet the FAFmug.

FAF

FAF = Fake Ass Fucker

when someone acts fake towards you, a two-faced ungenuine user who only talks to you if they want something
friend: 'hi sorry i can't come shopping with you today i'm ill'
hours later on facebook...

____ has uploaded the 59349439 pictures in an album 'shopping with the girls'

UGHHH YOU'RE SUCH A FAF!!!!!!
mugGet the FAFmug.

FAF

Noun/Adjective: Fine At First; context of seeing someone from far away, thinking they're good looking, and looking at them up close ruins the previous first impression.

May be used in context of a great first impression, but finding out a horrible personality.
Girl: Oh my gosh! That guy over there is so good looking.
Girl2: I agree!
*approaching guy*
Girl: Never mind. He's a FAF kind of guy.
by WomanLee November 01, 2012
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FAF

"Funny as Fuck". You can actually say this instead of saying "LOL" in real life.
You tell so many jokes that are FAF!
by lightscameramike October 03, 2011
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FAF

dude that's FAF
by Pyro June 16, 2004
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FAF

You look as FAF as ever!!
by Faffy Mc. Faf faf July 01, 2011
mugGet the FAFmug.