le clapet

valve, flap (valve)

k l a . p ɛ
noun · masculine Rare #38,049
valve, flap (valve) Often used for a one-way (check) valve or a small hinged flap that opens and closes to control airflow or fluid.
FR: Le clapet de la pompe est bloqué.
EN: The pump’s valve is stuck.

Je sais pas si on pourra lui fermer le clapet.

I don't know if we'll be able to shut him up.

— Blow Out (1981)

Je vous saurais bien gré de fermer votre clapet!

I would appreciate it if you would shut your mouth!

Fermez votre petit clapet!

Shut your little flap!

— Zootopie (2016)

Je vais lui faire fermer son clapet.

I'll make him shut his mouth.

Toi, tu fermes ton putain de clapet.

You, shut your fucking mouth.

— Drive (2011)

Il faut que tu fermes ton clapet.

You need to shut your mouth.