Pronunciation

change

Singular
muck

Plural
mucks

  1. (uncountable) Muck is any unclean wet substance.
    The soap sat in a soupy muck in the holder.
    As they dug in the muck, the men were constantly soaked by the rain.
change

Plain form
muck

Third-person singular
mucks

Past tense
mucked

Past participle
mucked

Present participle
mucking

  1. (transitive & intransitive) If you muck something up, you make a mess of it or you cause problems.
  2. (intransitive) If you muck around, you play, or you are not serious.
  3. (transitive & intransitive) If you muck out a place where animals like cows or pigs live, you clean out the animals' waste.