/ Dictionary / Index R riffraff: Meaning and Definition of Find definitions for: riff•raff Pronunciation: (rif'raf"), [key] — n. people, or a group of people, regarded as disreputable or worthless: a pack of riffraff. the lowest classes; rabble: the riffraff of the city. trash; rubbish. —adj. worthless, disreputable, or trashy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: riffraff (Thesaurus) riffler rifle Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language