keep one's mouth shut

keep one's mouth shut  {v. phr.},  {informal}

Замолкать или молчать. — Грубое выражение при использовании в качестве команды.

When the crooks were captured by the police, their leader warned them to keep their mouths shut.

Charles began to tell Barry how to kick the ball, and Barry said angrily, "Keep your mouth shut!"

Син.: SHUT UP (1).