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Meaning of mucker

muck•er

Pronunciation: (muk'ur), [key]
— n.
  1. a vulgar, illbred person.
  2. a person who often does or says the wrong thing; bungler.
  3. (esp. in mining) a person who removes muck.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.