BBT Share definition Flag Body By Tina, gay/trans slang for dieting with the aid of crystal meth, nevermind your braincells or your complexion, gurl be rockin that bbt. ''OOO She be rockin that bbt, oh that bitch'' BBT by DjJJ138 March 6, 2017 0 0 Get merch Get the BBT mug. Buy Now — $32.95 See more merch