BFF
Big fat f*cker
2 girls: we're Bff's (bestfriendsforever)
2 guys: haaha big fat f*cker!!
by CANYOUREADTHISYESYOUCAN October 16, 2011
BFF
Stands for Big Fat Fuck
My boss is a lazy, good-for-nothing BFF.
by Unka Chunka September 30, 2011
B- Big
F- Fat
F- Fucker
I used this since before best friends forever ever started. Original DOS, kermit word.

If I saw a guy at school that was huge, we would say B.F.F on our KERMIT conversation. If you do not know what kermit is, then look it up and you will see how old I am talking about. LOL
by HorseLOVA July 11, 2011
BFF
Meanings Best Friend Forever, but has been made incredibly stupid and overrated, mainly by stupid commercials trying to be "hip".
10 years ago the term BFF meant best friends forever, now i shudder every time i hear it because of stupid commercials trying to be cool by interacting with the younger audiences, but failing miserably and making whatever their advertising look like shit.
BFF
Best Fuck Friend. Your 'go to' girl when you want to have some no strings attached sex.
Jen is great in bed but when I'm really horny Jill is my BFF.

I hit the skins with Michelle last night. She's my BFF.
by ThisGr8One November 18, 2010
BFF
big fucking faggot. commonly used as "last one to ______ is a big fucking faggot!" to replace the more sophomoric "last one to ______ is a rotten egg!".
last one to remove is a BFF
by KaOs- October 15, 2010
BFF
B-utt

F-uck

F-rendzies

A group of people who occasionally preform anal sex in the bum.
You are the best BFFs ever!!!!! Bart, ive known you long enough now, wanna be BFFs ;)
by Hay Gangster Child September 11, 2010

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