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[wimp] /wɪmp/ Informal.
a weak, ineffectual, timid person.
Verb phrases
wimp out,
  1. to be or act like a wimp.
  2. to show timidity or cowardice; chicken out.
Origin of wimp
1915-20, Americanism; origin uncertain; cf. whimper Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for wimping out


(informal) a feeble ineffective person See also wimp out
Derived Forms
wimpish, wimpy, adjective
Word Origin
C20: of unknown origin


windows, icons, menus (or mice), pointers: denoting a type of user-friendly screen display used on small computers: a WIMP system
(physics) weakly interacting massive particle
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 wimping out



1920 (but not attested again until 1960), perhaps a clipped form of whimper (cf whimp, 1540s), perhaps influenced by J. Wellington Wimpy, comparatively unaggressive character in "Popeye" comics.


1986, with out (adv.), from wimp (n.). Related: Wimped; wimping.

Online Etymology Dictionary, © 2010 Douglas Harper
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wimping out in Science
Short for weakly interacting massive particle. Any of various hypothetical particles, some predicted by certain theories such as supersymmetry, which interact with other particles by the force of gravity alone. WIMPs are considered by some scientists to be candidates for the dark matter that makes up much of the mass of the universe.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Slang definitions & phrases for wimping out

will the real someone please stand up


May the actual claimant now be identified: After listening to Mr. Brown and Mr. Christopher, it was tempting to ask: Would the real Secretary of Commerce please stand up?

[1950s+; fr a television panel show, To Tell the Truth, where three different people claimed to have a certain identity, and the real one was finally asked to stand up]

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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Related Abbreviations for wimping out


  1. window, icon, menu, pointing [device]
  2. window, icon, mouse, pull-down [menu]
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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