50
one of your best friends;best friend forever;abbreviation to Best Friend Forever
"You are the best BFF a girl could have!"
by Mrs.Figglehorn June 12, 2009
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51
"Best female friend"

Differs from BF, which means "boyfriend."
I'm throwing a bachelorette party for my bff next week.
by Astergirl August 15, 2005
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52
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
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53
Girl:Boy, you are my bff (best friends forever)
Boy:Girl, you are my bff too (he have mean bitch for fuck)
by coft May 19, 2009
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54
Brain fart factor. A measurement of how much obvious information you forget when you take a test. Those with a B.F.F. of .1 forget 10% of the obvious. Those with a B.F.F. of .2 forget 20%, etc.
I only studied half the material and I have a .5 B.F.F. I'm only gonna get a 25% on the test. I'm screwed.
by 2014_chiguy October 01, 2007
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55
When applied to women, an annoying acronym meaning Best Friends Forever, but when applied to guys, has a slightly more condescending meaning, such as Butt-Fucking Fags, or Biggest Fucking Faeries, or --you get the idea
OMG, those fags are sooo BFF!
by Mr. Carrington June 23, 2006
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56
Contrary to popular belief the acronym BFF does not mean best friends forever. The actual meaning behind this is "Built For Fuckin" and refers to any female that has features that make her good for one thing and one thing only...FUCKING!! Features such as a big round ass, big ass tits (perky or floppy), long luscious legs, big full lips, and sexy fuck me eyes are all traits that make one "BFF"
guy 1: "Damn dog, look at that bitch over there she's fine as wine"

guy 2: "Yeah, she's definitely BFF!!"

guy 1: "what's that?"

guy 2: "means she's built for one thing and one thing only...FUCKING"
by T Weezy77 October 01, 2012
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