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not hurt a fly



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Idioms and Phrases

Also, not hurt a flea . Not cause harm to anyone, be gentle and mild, as in Paul's the kindest man—he wouldn't hurt a flea , or Bert has a temper but it's all talk; he wouldn't hurt a fly . Both fly and flea are used in the sense of “a small insignificant animal.” [Early 1800s]

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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Nothing will come of nothingnotice