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[hoo-duhn-it] /huˈdʌn ɪt/
noun, Informal.
a narrative dealing with a murder or a series of murders and the detection of the criminal; detective story.
Also, especially British, whodunnit.
Origin of whodunit
1925-30; jocular formation from question Who done it?, for standard English Who did it? Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Word Origin and History for whodunit

"murder mystery," 1930, U.S. slang, originally a semi-facetious formation from who done it?

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for whodunit



  1. An exclamation of surprise and delight; wow •This interjection appears to be replacing the very popular wow of the 1960s: Unsolicited confession: woah! (1980s+)
  2. (also whoa there or whoa Nelly) An exhortation to wait, go slow, not be hasty: Whoa, Nelly. Two aliens are heading this way (1940s+)

[fr whoa! ''Stop, horse!'' attested fr the 1840s]

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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