Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A small or worthless amount.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A small amount of no worth.
  • noun slang penis
  • interjection A written representation of a trill sound.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a small worthless amount

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Short for diddlyshit; see diddly-squat.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Short for diddly-squat

from Wiktionary, Creative Commons Attribution/Share-Alike License

Possibly shortened from diddlywhacker.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Imitating a sound

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Examples

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