a minimum amount or degree; the least bit (usually used in the negative): This coin collection isn't worth diddly-squat in today's market.
- Also doodly-squat.
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How to use diddly-squat in a sentence
There may well be a chill here, but it has diddly-squat to do with the one Senator Alexander fears.The Republican Street Fight Over Transparency in Government | Lawrence Lessig | March 26, 2014 | THE DAILY BEAST
British Dictionary definitions for diddly-squat
US and Canadian informal (usually used with a negative) anything: that doesn't mean diddly-squat
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