(1:) The sound of a gun; used in comics or real life
(2:) How an explosion or gunfire sounds in comics.
(3:) Sexual intercourse
(1:) The loud bang meant someone was being shot.
(2:) In the comic, the noisy bang meant that the criminal was shooting at the hero.
(3:) The pervert likes to bang hookers in the local strip club.
1)A loud noise that comes from something when it is hit really hard.
2)To have sex.
3)To hit (a nail or other object) into something (a piece of wood).
1) What was that loud bang I just heard?!
2)I just bang(ed) him last night.
3)I need to bang this nail into this piece of wood.