B.T.U

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 6, 2018

B.T.U.

British Thermal Unit


(see {BTU)

British Thermal Units are used in propane.

by some polak October 5, 2004