It means to give someone last couple of pulls of a cigarette. A bust down is when you give someone half of your cigarette.
by Shaj Miah April 13, 2007
Get the ace down mug.Related Words
ace down
• ace
• Ace of Spades
• Ace of Kpop
• ace-deuce
• ace boon coon
• Ace In The Hole
• Ace of Base
• ace rockola
• Ace Ventura