Bust is just another word for "hit" as in "lets hit a jack", again meaning smoke a cigarette.
We busted jacks, past tense
We just standing around busting jacks, prestent progressive
A word from the DC/ Moco area. Most other places people wont know what your talking about.
Guy 2: ya lets go.
Pothead 1: Lets blaze
Pothead 2: Arnt your parents home right now?
Pothead 3: As long as everyone is busting jacks they wont be able to tell, it should cover up the weed smell.
Pothead 4: Strate...
Idiot 1: Yeah I fuckin just pulled out my newports and busted a jack in the middle of class!
Idiot 2: Whaaat?? thats tight man
Idiot 1: Yeah but now I have to go to Whitman cuz I got expelled from BCC for it