From Rap Dictionary
- To fight to kill. "I'ma Bang! Hit the block pitchin slang" -- DMX (I'ma Bang) 
- To have sexual intercourse. "I'm thinking to myself why did I bang her" -- Ice Cube (You Can't Fade Me) 
- To slam dunk e.g "A yo trip, he did a 360 up in da air and then banged it in..."