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English definition of “shake sb up”

shake sb up

phrasal verb with shake     /ʃeɪk/ verb (shook, shaken)
If an unpleasant experience shakes someone up, it makes them feel shocked and upset: I think she was quite shaken up by the accident.Making people sad, shocked and upset
(Definition of shake sb up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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