What's on your mug?

Bust down is reference to an exaggerated motion during the act of reverse cowgirl.

She made it clap while she bust down on me.

By DatMofoAdub

Originating in the East Coast (esp. Baltimore, NY, PN, ect) - A Bust Down is a small part of a cigarette (usually less than one half) that one gives away.

"Let me get bust down's.. I ran out of cigs earlier today" "Bust me down" "You gave that guy a bust down? He stays bumming cigarettes.."

By Issue

The nature of sharing with someone else typically applied to sharing food.

"Is that Chips? Yo Bust Down!"

By parkorridejimin

Bust down as in a female or male to twerk

From song bust down thotiana “ I wanna see you bust down thotiana pick it up now brake that shii down”

By Jlinton328

to give someone the end of your cigarette

Tommy='hey Taren, can i have your bust down' Taren='sure thing sweetie pie, let me just have one more pull'

By Tommy Smokes