/ Dictionary / Index M mopping-up: Meaning and Definition of Find definitions for: mop•ping-up Pronunciation: (mop'ing-up'), [key] — adj. serving to complete or put the finishing touches to a phase of a particular action. serving to complete a military campaign by killing or capturing any remaining enemy troops: a mopping-up operation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mopping-up (Thesaurus) moppet M.Opt. Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language