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[krap] /kræp/
(in craps) a losing throw, in which the total on the two dice is 2, 3, or 12.
Verb phrases, past and past participle crapped, present participle crapping.
crap out,
  1. Also called seven out. (in the game of craps) to throw a 7 rather than make one's point.
  2. Slang. to abandon a project, activity, etc., because of fear, cowardice, exhaustion, loss of enthusiasm, etc.
  3. Slang. to break a promise or fail to fulfill a duty or obligation; renege.
Origin of crap2
1835-45, Americanism; back formation from craps Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for crap-out


a losing throw in the game of craps
another name for craps
Word Origin
C20: back formation from craps


another word for faeces
verb craps, crapping, crapped
(intransitive) another word for defecate
Usage note
This word was formerly considered to be taboo, and it was labelled as such in previous editions of Collins English Dictionary. However, it has now become acceptable in speech, although some older or more conservative people may object to its use
Word Origin
C15 crappe chaff, from Middle Dutch, probably from crappen to break off
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for crap-out



"defecate," 1846, from one of a cluster of words generally applied to things cast off or discarded (e.g. "weeds growing among corn" (early 15c.), "residue from renderings" (late 15c.), underworld slang for "money" (18c.), and in Shropshire, "dregs of beer or ale"), all probably from Middle English crappe "grain that was trodden underfoot in a barn, chaff" (mid-15c.), from Middle French crape "siftings," from Old French crappe, from Medieval Latin crappa, crapinum "chaff." Related: Crapped; crapping.

Despite folk etymology insistence, not from Thomas Crapper (1837-1910) who was, however, a busy plumber and may have had some minor role in the development of modern toilets. The name Crapper is a northern form of Cropper (attested from 1221), an occupational surname, obviously, but the exact reference is unclear.


"act of defecation," 1898; see crap (v.). Sense of "rubbish, nonsense" also first recorded 1898.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for crap-out



An exclamation of disbelief, disgust, disappointment, rejection, etc; fuck, shit: Oh, crap, I broke it again (1930s+)


  1. Feces; excrement; shit: The bad news is, I look like crap (1898+)
  2. Nonsense; pretentious talk; bold and deceitful absurdities; bullshit: I'm not interested in stories about the past or any crap of that kind (1898+)
  3. Offensive and contemptuous treatment; overt disrespect: But I don't take crap from anybody (1910+)
  4. Anything of shoddy quality; pretentious and meretricious trash: Her new show is pious crap (1920s+)


  1. To defecate; shit: Where's the bathroom? I have to crap (1846+)
  2. To lie, exaggerate; try to deceive: You're crapping me (1930+)

Related Terms

all that kind of crap, full of shit, shoot the bull

[by extension fr Middle English crap, ''chaff, siftings of grain, residue'']

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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Idioms and Phrases with crap-out
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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