has been mucking

• present perfect progressive

  present perfect progressive

  Used to describe an action that began in the past, has continued continuously, and is still in progress.

  of muck (3rd person singular).
  muck

  noun

  moist farmyard dung, decaying vegetable matter, etc.; manure.

Related Words

• dirt
• goo
• gunk
• manure
• mud
• slime
• sludge
• trash