IdiomBody & SensesFrench

Couper le sifflet à quelqu'un

Meaning: To silence someone abruptly, usually with an unanswerable point.

Literally: To cut someone's whistle

Example: “Sa réponse chiffrée a coupé le sifflet au contradicteur.” — Her answer, backed by figures, took the wind out of her opponent's sails.

English equivalent: To take the wind out of someone's sails

Equivalents in other languages

Origin: The phrase arrives in the 16th century meaning something a great deal worse than it does now. Figuratively sifflet was the gullet — the passage the windpipe runs through, which really can whistle in certain illnesses — so cutting someone's sifflet was cutting their throat, an approach to winning an argument that at least has the merit of being final. French also had serrer le sifflet, to strangle. It is only across the 18th century that the sense softens into the modern one, where what stops the other person talking is astonishment, indignation or fright rather than a blade.

More French idioms

Explore another collection: False Friends

Words that look familiar in another language but mean something else entirely.

  • Blesser Actually means 'to wound' or 'to injure'. Je suis blessé = I am injured — not blessed.
  • Location Actually means 'rental'. Une location de voiture = a car rental. For location (place), sa…
  • Assister Actually means 'to attend' an event. J'assiste à la réunion = I attend the meeting. For a…

Browse all false friends →

Keep exploring

Explore all idioms →