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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 sexual 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.
Precisely; exactly: bang on the hour (1820s+)noun
[late 1980s+ Los Angeles gangs; from the rhyme, but influenced by gang bang, ''serial sex act done by a group of males to one woman'']
1. A common spoken name for "!" (ASCII 33), especially when used in pronouncing a bang path in spoken hackish. In elder days this was considered a CMUish usage, with MIT and Stanford hackers preferring excl or shriek; but the spread of Unix has carried "bang" with it (especially via the term bang path) and it is now certainly the most common spoken name for "!". Note that it is used exclusively for non-emphatic written "!"; one would not say "Congratulations bang" (except possibly for humorous purposes), but if one wanted to specify the exact characters "foo!" one would speak "Eff oh oh bang".
See pling, shriek, ASCII.
2. An exclamation signifying roughly "I have achieved enlightenment!", or "The dynamite has cleared out my brain!" Often used to acknowledge that one has perpetrated a thinko immediately after one has been called on it.