Someone, usually a female, who will have sex with anyone.
"I'm on the west side of Chicago lookin' for a bust-down" Cam'ron
an ammount given to someone when asked for a decent ammount of a cigarette. around a thumbs worth sideways next to the begging of the filter. see also term ace
person one: hey can I get a little bit of your cigg?
person two: how about a bust-down?
person one: sure, thanks.