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English definition of “diss”

diss

verb [T] uk (-ss-) (also dis)   /dɪs/ US slang us  
to speak or behave rudely to someone, or to show someone no respect: Don't diss me, man!Insults and abuseTreating people or animals badly
(Definition of diss from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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