/ Dictionary / Index S sourpuss: Meaning and Definition of Find definitions for: sour•puss Pronunciation: (sour'poos", sou'ur-), [key] — n. Informal. a person having a grouchy disposition that is often accompanied by a scowling facial expression. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sourpuss (Thesaurus) sour orange sour salt Related Content Daily Word Quiz: ounterfeit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language