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English definition of “muck”

muck

noun [U] uk   /mʌk/ us  
dirt or solid animal waste: You're treading muck into the carpet with your dirty shoes! a pile of dog muckExcrement and its excretionDirt and untidiness something you consider very unpleasant or very low quality: I'm not eating that muck! The immigrants were treated like muck (= treated badly, as if they were not important).Rubbish and wasteEnvironmental issues
(Definition of muck from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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