Pronunciation: (muk),[key] —n. 1. moist farmyard dung, decaying vegetable matter, etc.; manure.
2. a highly organic, dark or black soil, less than 50 percent combustible, often used as a manure.
3. mire; mud.
4. filth, dirt, or slime.
5. defamatory or sullying remarks.
6. a state of chaos or confusion: to make a muck of things. 7. Chiefly Brit. Informal.something of no value; trash.
8. (esp. in mining) earth, rock, or other useless matter to be removed in order to get out the mineral or other substances sought.
—v.t. 1. to manure.
2. to make dirty; soil.
3. to remove muck from (sometimes fol. by out).
4. Informal. a. to ruin; bungle (often fol. by up).
b. to put into a state of complete confusion (often fol. by up).
5. muck about or around,Informal.to idle; waste time; loiter.