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scum

noun [C or U] (IMMORAL PERSON)
 
 
/skʌm/ (plural scum) informal

Definition

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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