This is an abbreviation of Black The Fuck Out, not remembering what you will be doing that night.
Yo, I'm gunna B.T.F.O tonight

I failed that exam, I think I'm going to B.T.F.O to forget about it.
by hoezntricks567 April 23, 2011
Top Definition
Acronym which stands for "blown the fuck out." Generally used to refer to a sports team that loses to another by a large margin. Especially if the losing team was expected to win.
The Philadelphia Phillies just got BTFO by the New York Mets 8-2.
by asdfMan December 06, 2013
AOL slang for "Back the fuck off." Usually used in conjunction with other internet short hand or "l33t" termage.
Btfo. Gtfo. Kthx.
by Matthew Darke February 18, 2003
Black The Fuck Out
the hottest new club drink:
2 shots: vodka
2 shots: tequila
2 shots: rum
2 shots: gin
2 shots: jager
2 shots: whiskey
splash of coke
nate just killed his BTFO in like 30 seconds. he's gonna get so many bitches tonight.
by adam and nate. November 05, 2011
Btfo - As in, Back the fuck off.
"Everyone just needs to btfo right now."
by quarterprime September 07, 2011
Bug The Fuck Out/Bitch The Fuck Out.
Dude #1: She started to btfo when I asked her for a blowjob.

Dude #2: She doesn't even know that you don't actually pee out of the vagina yet, what do you expect?
by GodlyRape March 06, 2010
Blacked The Fuck Out. The utmost levels of drunken ineptitude, where all controlled motor functions, inhibitions, and sound judgments go to die.
"How did I end up on your couch?"
"You were BTFO last night, dude."
"Ah, thanks. Why does my ass hurt?"

"I want to quit my job, but don't have the balls to do so. I guess I'll get BTFO at the next work function and let it sort itself out."
by ACNY January 14, 2010

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