BIF is an acronym for Butt-In-Front. It refers to the large fat pouch people, particularly women, have on the front side.
Check out the BIF on that whale...
by Steve October 30, 2002
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Acronym for Balls In Face. When a dude is looking at something on your desk, standing so close to your face you can almost smell his crotch.
"Dude you just got BIFfed so hard."
"What the hell? Junior BIFs me every fucking morning when I get in. I am almost to the point of getting a dental dam."
by FerrisM December 9, 2011
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boyfriend. from 'bf' and developed into the pronouncable word 'bif'

"i'm going to go call my bif now"
"my bif and i are going out tonight"
by britneyjk October 4, 2006
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To creep, to be seen and not heard.
Biff opened the group chat and didn't say a word. Hes biffing
by Jervisa February 8, 2017
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When someone messes up or misses. Mainly on rocket league when M thomson07 misses an open net or smallgamer32 (the best player). It can also be in IRL. The term biffed it is a term that made me and Marley have a laughing fit.
Cobuscus misses the kiss on Naomi he biffed it
by MATTMEISTER October 6, 2021
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BIF:

If People like what you do, just say it: Bitch I'm Famous!

If your proud of yourself of what you did, just say it: Bitch I'm Famous!

If you feel good about yourself and you look hot, just say it:
Bitch I'm Famous!

etc.
by Darmine86 October 23, 2010
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