bang

1 noun

1 (C) a sudden loud noise caused by something such as a gun or an object hitting a hard surface: The front door slammed with a loud bang.

2 (C) a hard knock or hit against something: That was a nasty bang on the head.

3 bangs (plural) AmE hair cut straight across your forehead; fringe 1 (1) BrE

4 (singular) AmE informal a strong feeling of pleasure: She got a real bang out of seeing the kids in the school play.

5 go off with a bang to happen in a very successful way: The party really went off with a bang!

2 verb

1 KNOCK/HIT STH (I, T) to hit something hard against something else, making a loud noise: She banged the phone down.

(+ on): They were banging on the door with their fists.

2 CLOSE STH (intransitive always + adv/prep, transitive) to close something violently making a loud noise, or to make something close in this way: She banged the door and stomped up the stairs. | bang shut: The window banged shut.

3 MAKE NOISE (I) to make a loud noise or noises

(+ about/around/away): I could hear the garage door banging in the wind.

4 HIT STH (T) to hit a part of your body or something you are carrying against something, especially by accident; bump 1 (1): Bobby fell and banged his knee. | I slipped and banged the guitar against the door.

5 be banging your head against a brick wall informal to be wasting your efforts by doing something that does not produce any results: Trying to teach that class is like banging your head against a brick wall.

6 HAVE SEX (T) taboo to have sex with someone

bang on phrasal verb (I) BrE informal to talk continuously about something in a boring way (+ about): I'm tired of politicians banging on about family values. bang sth out phrasal verb (T) informal

1 to play a tune or song loudly and badly on a piano

2 to write something in a hurry, especially on a typewriter: Danielle banged out a few letters, before going home for the day.

bang sb/sth up phrasal verb (T) BrE slang

1 to put someone in prison

2 AmE informal to seriously damage something: a banged-up old Buick

3 adverb

1 informal directly or exactly: The train arrived bang on time.

2 bang on spoken exactly correct: Yes! Your answer's bang on!

3 bang goes spoken used to show that you are unhappy because something you had hoped for will not happen: $750 to repair the car? Bang goes my holiday.

4 spoken in a sudden, violent way: He slowed down, and bang! The car behind crashed straight into us!

4 interjection used to make a sound like a gun or bomb: "Bang, bang - you're dead," Tommy shouted.