<p><strong>Noun</strong></p><ul><li>moist farmyard dung, decaying vegetable matter, etc.; manure.</li><li>a highly organic, dark or black soil, less than 50 percent combustible, often used as a manure.</li><li>mire; mud.</li><li>filth, dirt, or slime.</li><li>defamatory or sullying remarks.</li><li>a state of chaos or confusion: to make a muck of things.</li><li>Chiefly British Informal: something of no value; trash.</li><li>(especially in mining) earth, rock, or other useless matter to be removed in order to get out the mineral or other substances sought.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to manure.</li><li>to make dirty; soil.</li><li>to remove muck from (sometimes followed by out).</li><li>Informal: to ruin; bungle (often followed by up).</li><li>to put into a state of complete confusion (often followed by up).</li></ul><p><strong>Verb Phrase</strong></p><ul><li>Informal: to idle; waste time; loiter.</li></ul>