blow the gaff Meaning in the Cambridge English Dictionary
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Meaning of “blow the gaff” in the English Dictionary

"blow the gaff" in British English

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blow the gaff

UK old-fashioned to make ​known a ​secret: He's a good ​bloke - he wouldn't blow the ​gaff on us.
(Definition of blow the gaff from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “blow the gaff”
in Chinese (Simplified) 泄露秘密…
in Chinese (Traditional) 洩露秘密…