let the cat out of the bag ranskaksi - Sanakirja.org (englanti-ranska)

Käännös		Konteksti
Verbit
1.	vendre la mèche	idiomaattinen, kuvaannollinen
2.	cracher le morceau	kuvaannollinen

(idiomatic) To disclose a secret; to let a secret be known, often inadvertently.

It was going to be a surprise party until someone let the cat out of the bag.
- La fête était censée être une surprise jusqu’à ce que quelqu’un ne vende la mèche.
He proved himself as decent, decorous, and conscientious as Peter was rampant, boisterous, and — This last epithet I choose to suppress, because it would let the cat out of the bag.