[n] fecal matter of animals
[n] any thick messy substance
[v] remove muck, clear away muck, as in a mine
[v] soil with mud, muck, or mire; "The child mucked up his shirt while playing ball in the garden"
[v] spread manure, as for fertilization
droppings, dung, goo, gook, guck, gunk, manure, mire, muck up, mud, ooze, slime, sludge