/ Dictionary / Index D diddlyshit: Meaning and Definition of Find definitions for: did•dly•shit Pronunciation: (did'lē-shit"), [key] — n. Slang (vulgar) diddly (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: diddlyshit (Thesaurus) diddly diddly-squat Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language