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[did-lee] /ˈdɪd li/
noun, plural diddlies for 2. Slang.
a thing of little or no value; naught:
Your excuses aren't worth diddly to me.
a flaw; malfunction.
Origin of diddly
perhaps euphemistic shortening of diddlyshit Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for diddly
  • It's because the university tests that have shown diddly-squat.
  • The breakthroughs get a lot of attention, but attention means diddly-squat in the bigger picture.
  • D-Wave has demonstrated diddly squat that could not be simulated by a conventional computer.
  • Apple had the desktops covered, all right, but it didn't have diddly for anything more powerful.
  • Clearly none of this matters diddly to the bureaucrat in finance.
  • Online terminal degrees are not worth diddly on the academic job market.
  • De- spite his size and ego, everything he does is diddly.
  • Crouching to bunt doesn't change the strike zone, oh you who claim to know diddly about baseball.
Slang definitions & phrases for diddly



Trivial; insignificant: Tennis was a diddly sport back then/ If you had a choice between IBM or a diddly-squirt upstart


Nothing at all; very little; zilch: Rock critics don't mean diddley/ I don't know a diddly damn about theater/ And Hannibal, he didn't do diddly-squat/ They take this very seriously. It isn't just ''diddley-eye'' to them (1960s+)

Related Terms

not give a damn, not know beans

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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