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English definition of “top sb up”

top sb up

informal phrasal verb with top     /tɒp/ US  /tɑːp/ verb (-pp-)
to put more drink into someone's glass or cup: Your glass is nearly empty. Let me top you up.Filling and completingMovement of liquids
(Definition of top sb up from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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