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English definition of “be not on”

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be not on

mainly UK
Something that is not on is unacceptable and should not happen: You can't be expected to work for nothing - it's not on.
Translations of “be not on”
in Chinese (Traditional) (表示不能接受、不應該發生)不行,行不通…
in Chinese (Simplified) (表示不能接受、不应该发生)不行,行不通…
(Definition of be not on from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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