(muk) noun
1. Moist manure containing decomposed vegetable matter.
2. A nasty mess; filth.
3. Vegetable mold combined with earth.
—v.t.
1. To fertilize with manure.
2. Colloq. To make dirty; pollute.
3. To remove muck from. [ME muk <Scand. Cf. ON myki dung, moka shovel manure.]

(mk), Karl,
1859–1940, German conductor, active in the United States.