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a loud, sudden, explosive noise, as the discharge of a gun.
a resounding stroke or blow:
a nasty bang on the head.
informal. a sudden movement or show of energy:
he started with a bang.
energy; vitality; spirit:
the bang has gone out of my work.
informal. sudden or intense pleasure; thrill; excitement:
a big bang out of seeing movies.
slang: vulgar. s-xual intercourse.
printing and computer slang. an exclamation point.
to strike or beat resoundingly; pound:
to bang a door.
to hit or b-mp painfully:
to bang one’s ankle on a chair leg.
to throw or set down roughly; slam:
he banged the plates on the table.
slang: vulgar. to have s-xual intercourse with.
to strike violently or noisily:
to bang on the door.
to make a loud, sudden, explosive noise like that of a violent blow:
the guns banged all night.
slang: vulgar. to have s-xual intercourse.
suddenly and loudly; abruptly or violently:
she fell bang against the wall.
directly; precisely; right:
he stood bang in the middle of the flower bed.
bang into, to collide with; b-mp into:
the truck skidded on the ice and banged into a parked car.
bang up, to damage:
a p-ssing car banged up our fender.
bang off, chiefly british slang. immediately; right away.
bang on, chiefly british slang. terrific; marvelous; just right:
that hat is absolutely bang on.
noun
a short loud explosive noise, as of the bursting of a balloon or the report of a gun
a hard blow or knock, esp a noisy one; thump: he gave the ball a bang
(informal) a startling or sudden effect: he realized with a bang that he was late
(slang) an injection of heroin or other narcotic
(taboo, slang) an act of s-xual intercourse
(us & canadian, slang) get a bang out of, to experience a thrill or excitement from
with a bang, successfully: the party went with a bang
verb
to hit or knock, esp with a loud noise; b-mp: to bang one’s head
to move noisily or clumsily: to bang about the house
to close (a door, window, etc) or (of a door, etc) be closed noisily; slam
(transitive) to cause to move by hitting vigorously: he banged the ball over the fence
to make or cause to make a loud noise, as of an explosion
(transitive) (brit)

to cause (stock prices) to fall by rapid selling
to sell rapidly in (a stock market), thus causing prices to fall

(taboo, slang) to have s-xual intercourse with
(intransitive) (slang) to inject heroin, etc
(informal) bang for one’s buck, value for money: this option offers more bang for your buck
(informal) bang goes, that is the end of: bang goes my job in wapping
bang one’s head against a brick wall, to try to achieve something impossible
adverb
with a sudden impact or effect: bang went his hopes of winning, the car drove bang into a lamp-post
precisely: bang in the middle of the road
(slang) bang to rights, caught red-handed
go bang, to burst, shut, etc, with a loud noise see also bang up
noun
a fringe or section of hair cut straight across the forehead
verb (transitive)
to cut (the hair) in such a style
to dock (the tail of a horse, etc)
noun
a variant spelling of bhang
v.

1540s, “to strike hard with a loud blow,” from a scandinavian sourse akin to old norse banga “to pound, hammer” of echoic origin. slang meaning “have s-xual intercourse with” first recorded 1937. bang-up “excellent, first-rate,” 1820, probably shortened from phrase bang up to the mark. the noun is recorded from late 16c.

this is the way the world ends
not with a bang but a whimper

[t.s. eliot, “hollow men,” 1925]

bang (bāng, bäng), bernhard lauritz frederik. 1848-1932.

danish veterinarian who discovered brucella abortus, the agent of brucellosis in cattle and of undulant fever in humans.

adverb

precisely; exactly: bang on the hour (1820s+)

noun

a very pleasurable sensation; surge of joy; thrill; kick, rush: this’ll give you a big bang (1930+)
an injection of a narcotic, esp an intravenous shot of heroin (1910+ narcotics)
the s-x act: the wedding night, you idiot. the first bang. how was it?
an exclamation point; shriek: let’s stick a bang on it to dress it up (printers 1930s+, computer 1980s+)
a drink of liquor; shot: give me a bang of jaeger meister (1990s+) v1x to do the s-x act with or to; copulate with: he banged her twice and left happy (1916+) 2 to be in a youth gang; be a g-ngb-nger

related terms

big bang, gang bang, get a bang (or charge) out of someone or something, go over with a bang, whizbang

[late 1980s+ los angeles gangs; from the rhyme, but influenced by gang bang, ”serial s-x act done by a group of males to one woman”]
crash noisily into, collide with, as in a clumsy fellow, bill was always banging into furniture. [ early 1700s ]
strike heavily so as to drive in; also, persuade. for example, i’ve been banging nails into the siding all day , or i can’t seem to bang it into his head that time is precious . the literal usage dates from the mid-1500s, the figurative from the second half of the 1800s. also see b-mp into

bang away
bang for the buck
bang into
bang one’s head against
bang out
bang up