As nouns the difference between bang and forelock
is that
bang is a sudden percussive noise while
forelock is the part of a person's hairstyle which covers the forehead.
As a verb bang
is to make sudden loud noises, and often repeatedly, especially by exploding or hitting something.
As an adverb bang
is right, directly.
As an interjection bang
is a verbal emulation of a sudden percussive sound.