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(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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Jan 25 Word of the Day
Oh youโ€™re just being alive? Iโ€™m horny too
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by ecogoth January 01, 2021
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When your friend drops the bong and spills all the water. What a BT.
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by Adderal345 August 28, 2018
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Acronym for Bozi Txa
In Armenian, Bozi Txa translates to son of a bitch or son of a whore.
This is the worst possible thing to say.
"You don't call me bt, I won't call you bt."


"Apeh don't say bt."


Person 1: "You're a BT"
Person 2: *Instantly knocks out Person 1"

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by Tnglis Aper April 10, 2017
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Abbreviation for Bird Trouble which expresses your significant other giving you grief. Every man with a partner experiences some form of BT (some worse than others) The term derives from track 3 "Bird Trouble" on UK Street Punk/Oi! Band Cock Sparrers 1994 album Guilty As Charged.
I can't go out tonight. My girl's giving me BT and I gotta deal with this shit!
by Jake Pounder September 22, 2018
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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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