be all mouth Meaning in the Cambridge English Dictionary
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Meaning of “be all mouth” in the English Dictionary

"be all mouth" in British English

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be all mouth

(UK also be all mouth and no trousers) informal to ​talk a lot about doing something but never do it: He says he's going to ​complain to the ​manager, but he's all mouth.
(Definition of be all mouth from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)
Translations of “be all mouth”
in Chinese (Simplified) 只说不做…
in Chinese (Traditional) 只說不做…
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