Acronym for Big forehead syndrom - when someone does somthing stupid or says somthing dumb they have it.
Larry- *accidentrly sits on mayo jar*
Henry- are you retarded?
Bart- ya he has BFS
by UncleSlav March 25, 2022
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On a pregnancy chatroom/discussion board, BF is shorthand for BREAST FEEDING
hey all you Bf-ing moms out there: is it okay if I drink coffee?
by WinnieNY February 20, 2007
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boyfriend. gf is girlfriend, and BF is best friend, because your best friend should always come before your significant other, regardless to your commitment level.
person 1: "what did you do this weekend?"

person 2: "oh, I went out with the bf."
by miriam February 18, 2004
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She's been so involving with my bf lately
by Youijl March 8, 2017
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Boy For Sex: Kinda like BFF only less friendly and more sexie if like you know what I mean.
A.K.A. Boy For Score
Used like, I'm going out to GNO to find a BFS! "He's my BFS." or "He's one of my best BFS."

Or like, ''We're Hop'in to find a BFS!"

FWB BFF
by Sunshine4321 March 8, 2010
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B**** Fit. Like in the movie White Chicks.
Oh my god, if you don't buy me those jeans, I'm going to have a BF.
by LetsHaveAParty June 6, 2005
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