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English definition of “scum”

scum

noun [C or U] (IMMORAL PERSON)    /skʌm/ (plural scum) informal
a very bad or immoral person or group of people: People who organize dog fights are scum in my opinion! His boss treats him like scum (= very badly). racist scumUnpleasant people in generalUnpleasant men scummy     /ˈskʌm.i/ adjective Dirty and untidy
(Definition of scum noun (IMMORAL PERSON) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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