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English definition of “come on”

come on

(NOT BELIEVE) informal phrasal verb with come     /kʌm/ verb (came, come)
used to tell someone that you do not believe them or that you disagree with them, or to show that you are angry with them: Oh come on, Ian, you made the same excuse last week!InterjectionsSounds used as interjections
(Definition of come on (NOT BELIEVE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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