IdiomBody & SensesFrench

Clouer le bec à quelqu'un

Meaning: To silence someone completely, usually with an unanswerable reply.

Literally: To nail someone's beak shut

Example: “Sa réponse pleine d'esprit a cloué le bec au critique.” — Her witty reply left the critic with nothing to say.

Origin: Bec for the human mouth is old and dismissive, treating the talker as a squawking bird. Nailing it shut is a deliberately brutal image for an argument that leaves no possible response.

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