be out to lunch Meaning in the Cambridge English Dictionary

Meaning of “be out to lunch” in the English Dictionary

"be out to lunch" in British English

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be out to lunch

informal to be ​crazy: So do I take this ​guyseriously or is he out to lunch?
(Definition of be out to lunch from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “be out to lunch”
in Chinese (Simplified) 发疯,失去理智…
in Chinese (Traditional) 發瘋,失去理智…
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“be out to lunch” in British English

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