/ Dictionary / Index M mucker: Meaning and Definition of Find definitions for: muck•er Pronunciation: (muk'ur), [key] — n. a vulgar, illbred person. a person who often does or says the wrong thing; bungler. (esp. in mining) a person who removes muck. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. muck bar mucking Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language