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

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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

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"Back the fuck off"
"Btfo my girl!"
by Wavvyyy.maddie24 December 11, 2016

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Bent the fuck out
Suzie got BTFO by something trivial she didn't agree with and started screaming "Get this hate speech off this campus!" In the middle of a crowded auditorium
by breakaction January 12, 2017

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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

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Btfo - As in, Back the fuck off.
"Everyone just needs to btfo right now."
by quarterprime September 07, 2011

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Bail The Fuck Out
Dude, the car's on fire, btfo.
by 0kr0n1k August 20, 2008

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the definition of BTFO is bone the fuck out .
i saw the cops come when the fight was going down so i told every one to btfo .
by tyson randell dorsey December 10, 2007

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