(bang) noun
1. A sudden or noisy blow, thump, whack, or explosion.
2. Colloq. A sudden spring; dash.
3. U.S. Slang Thrill; excitement: to get a bang out of flying. [<v.]
—adverb
1. With a violent blow or loud and sudden noise.
2. All at once; abruptly.
—v.t.
1. To beat or strike resoundingly.
2. To shut noisily, as a door.
3. To give a thrashing to; drub.
—v.i.
4. To make a heavy, loud sound.
5. To strike noisily: The car banged into the wall. [<ON banga hammer, beat]

(bang) noun
Front hair cut straight across: usually in the plural.
—v.t. To cut straight across, as the front hair. [<BANG¹, adverb; from the hair being cut off abruptly]

(bang)
See BHANG.