/ Dictionary / Index F flub: Meaning and Definition of Find definitions for: flub Pronunciation: (flub), [key] — v., n. flubbed, flub•bing, —v.t., v.i. to perform poorly; blunder; bungle: He flubbed the last shot and lost the match. —n. a blunder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flub (Thesaurus) flu flubdub 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