n. 25B6; noun
I'll just clean off the muck : DIRT, grime, filth, mud, slime, mess; informal crud, gunk, grunge, gloop; Brit. informal gunge, grot; N. Amer. informal guck, glop.
spreading muck on the fields : DUNG, manure, ordure, excrement, excreta, droppings, faeces, sewage; N. Amer. informal cow chips, horse apples.
25A0; muck something up (informal) MAKE A MESS OF, mess up, bungle, spoil, ruin, wreck; informal botch, make a hash of, muff, fluff, foul up, louse up; Brit. informal make a pig's ear of, make a Horlicks of; N. Amer. informal goof up.
25A0; muck about/around (Brit. informal)
he was mucking about with his mates : FOOL ABOUT/AROUND, play about/around, clown about/around, footle about/around; informal mess about/around, horse about/around, lark (about/around).
someone's been mucking about with the video : INTERFERE, fiddle (about/around), play about/around, tamper, meddle, tinker; informal mess (about/around).