(n.) acronym for "big tits"; only acceptable for use when interchangable with one's name, as if a nickname, i.e. used only in the place of a name, specifically that of a female with large breasts (exs.: inappropriate use - That woman has B.T.; appropriate use - I have a date with B.T.)
When Bainz called me, it soon became apparent he was checking to see how my night with B.T. had gone.
by P'tainz February 12, 2013
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Bad timing, also known as demon timing. To describe when you are up to something devious.
Person 1: "Yoo what are we on today?"
Person 2: "B.T. nigga, you already know"
by KDsBurnerAccount October 9, 2023
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Christian ripped a b.t. before heading off to class.
by hughmonger October 31, 2003
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"Bald Twat"
As in, underage, barely legal pussy.
"Donny got arrested for fucking around with that B.T."
by Gerry "s" April 11, 2008
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when you are sitting either alone or in school or at some other social function, and you see a very attractive young female and you decide to get a hardy(also known as boner time)
yo nigga you see dat bitch walk by?man shoot, i took some B.T. right thurr

shit nigga i got mad B.T. today
by sir daddy long cock April 26, 2008
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Also known as BIG TITS . A girl that has big tits , may be referred to as a nickname
A girl with really big boobs who commonly cannot keep her own boobs hidden

Her boobs are known to always POP out !
"Hey B.T "
Translation hey big tits

Hey Kathy is a B T ,
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