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English definition of “show sb up”

show sb up

verb uk phrasal verb with show   /ʃəʊ/ us    /ʃoʊ/ (showed, shown)
to behave in a way that makes someone you are with feel ashamed or embarrassed: I wish you wouldn't show me up in front of my parents by getting so drunk.Embarrassing
(Definition of show sb up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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