/ Dictionary / Index F flab: Meaning and Definition of Find definitions for: flab Pronunciation: (flab), [key] — n. flabby flesh; unwanted fat: Daily exercise will get rid of the flab around your waist. the condition of being flabby: Most of the new recruits had run to flab in civilian life. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: flab (Thesaurus) Fla. flabbergast Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language