Definition of muck noun from the Oxford Advanced American Dictionary

     

    muck

     noun
    noun
    NAmE//mʌk//
     
     
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  1. 1waste matter from farm animals synonym manure to spread muck on the fields
  2. 2 (informal) dirt or mud Can you wipe the muck off the windows?
  3. 3 (informal) something very unpleasant I can't eat this muck!
See the Oxford Advanced Learner's Dictionary entry: muck