working your ass off for many hours

Any given act which provides satisfaction

Any given act which provides satisfaction to the person doing same.

so damn good

an air performed at the top of a wave on a surfboard or other wave riding device rusulting in the fins leaving the water.

Doing all sorts of crazy things in an insane, but professional manner. Almost always involving physical activities, normally held Outdoors, and in either remote locations, or in plain public view. Bustin' is a new "Sport" Created by Bustin Justin himself, to put a definition for and after all the things he does. Most in which involved the destruction of someone or something in the vacinity or his actions.

Bustin is when you perform extremely well in something.