Diddly-squat meaning

dĭdlē-skwŏt
A small or worthless amount.
noun
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1
noun
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0
(US slang, often humorous) Nothing; nothing whatsoever.
noun
1
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Alternative form of diddly-squat.
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Origin of diddly-squat

  • Alteration of diddlyshit (influenced by doodly-squat) diddly (probably from diddle) shit

    From American Heritage Dictionary of the English Language, 5th Edition

  • The Random House Historical Dictionary of American Slang suggests that this is a variation of doodly-squat from 1934. Doodly-squat was originally the more common form, but diddly-squat overtook it in the mid-1970s, and is now four times more common in print.

    From Wiktionary