Meaning of “big mouth” in the English Dictionary

british dictionary

"big mouth" in British English

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big mouthnoun [ C usually singular ]

uk /ˈbɪɡ ˌmaʊθ/ us /ˈbɪɡ ˌmaʊθ/ informal disapproving

(Definition of “big mouth” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

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