muckmuck1 /mʌk/ noun [uncountable] informal 🔊 🔊 1DIRTYdirt, mud, or another stickysubstance that makes something dirty 🔊 Come on, let’s wipe that muck off your face.2British EnglishTADLGwaste matter from animals, sometimes put on land to make plants grow better syn manure 🔊 special machinery for spreading muck onto the fields 🔊 dog muck3BAD British English something that is unpleasant or of very bad quality 🔊 How can you eat that muck? It looks disgusting. 🔊 I’m not surprised she left. He treated her like muck (=very badly).4 →make a muck of something5 →as common as muck
muck• And, as any football-mad kid knows, there is nothing as embarrassing as mucking about in last season's kit.• To McDonough, a stubby 280-pounder, the charm of elective office was not mucking about with papers and figures.• You can come up and let yourself go - shout about and that and muck about.• How long will it take if we all muck in?• And the old caretaker lives next door, so he feeds them and mucks out.• Each does his own mucking out.• Her house, she says, is being renovated and it's mucking up her schedule.• He was taking no chances on having too many deaths to muck up his statistics.