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slang for "back the SHIT OFF!!!!", often said to douchebags who can go fuck themselves.
douchebag - "You talkin shit man? You wanna fight?"

badass - "Hey man why don't you BTSO!!!!"
by dirty44harry November 17, 2008
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Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
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