Top definition
B.T.U meaning bet that up, you say this when your gonna get revenge on someone or your agreeing to do something together and your lowkey excited about it.
Bro#1: Hood bro im bouta come scoop you we finna hotbox.
Bro#2: Ight B.T.U my guy

Or
Brother: OMG ON GOD WHO ATE MY LEFTOVERS!!!
Sister: I Did

Brother: On God bet that up(B.T.U)
by Vonnies_Wrld August 05, 2018
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Apr 22 Word of the Day
When you eat dirt for the first time and leave your family to build a shack in the woods
Bro since I got dirtpilled on Tuesday I have made sooo many worm friends and made them soo many little houses to get married in. Me? Lonely? No you’re the lonely one u lawn owning freak
by ecogoth December 30, 2020
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2
British Thermal Unit


(see {BTU)
British Thermal Units are used in propane.
by some polak October 04, 2004
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3
British Thermal Unit

(see B.T.U.)
BRITISH THERMAL UNIT (used in propane)
by some polak October 04, 2004
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4
Blow this up (making something popular or viral)

On a video that is usually funny
"This is such a funny video im going to btu"
by December 25, 2020
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