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English definition of “mess sb up”

mess sb up

verb uk phrasal verb with mess   /mes/ us  

(CAUSE PROBLEMS)

to cause someone to suffer emotional and mental problems: Drugs can really mess you up.Making people sad, shocked and upsetScience of psychology and psychoanalysisMind and personality

(INJURE)

US slang to hit someone repeatedly so that they are badly injuredHitting and beatingPunishing by causing pain
(Definition of mess sb up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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