(BIF = Before I forget)

...and that’s final, and that’s that, it’s as simple as that, period. BTW BIF...U suk! (It's always important to have the last word, even if it is an acronym, or as luck may have it; a pseudo-acronym.) See example below.
Kid 1: BIF...shut the F'Up. NO...Srsly!

Kid 2: (scared stiff)
by meshla December 31, 2010
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Short for borderline intellectual functioning. 1. a bif is not a "downie" but then again not smart either. 2. below average intelligence. 3. George W Bush. 4. politicians in gerneral. Often refers to individuals that wear tacky metal alloys in thier teeth.
Jay-Z just spent $100,000 dollors on a new grill yesterday, fucking BIF is wasting his money!
by nathan haley January 22, 2007
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LOOK DAVID ETHRIDGE THAT CHICK U LIKE HAS A BIF
by PHILLIP HUGHITT August 15, 2008
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Literal pronunciation of the term "BF" which stands for boyfriend. Used by actual retards who also say "lol" as "lawl".
by Satanisist July 1, 2015
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short for butt-in-front!~! Can be accompanied by HBBS(Hairy Bean bagS)
The teacher ,Bob ,has a big bif that pokes me in the EYE!
by bif Lubber February 18, 2003
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