Francophonie· easy· informal

clouer le bec

to nail the beak

Meaning

to silence someone completely

Explanation

Used when a sharp comeback or hard evidence leaves someone with nothing left to say.

Example

Sa réponse cinglante lui a cloué le bec.

Her cutting reply left him speechless.

Origin

Clouer here is an old alteration of clore (to close), not the modern clou (nail) it resembles. The image of literally nailing someone's beak shut just made the expression stick.

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