pipe down

verb

1. informal,  (intr, adverb) to stop talking, making noise, etc

Idioms and Phrases

Stop talking, be quiet, as in I wish you children would pipe down. This idiom is also used as an imperative, as in Pipe down! We want to listen to the opera. It comes from the navy, where the signal for all hands to turn in was sometimes sounded on a whistle or pipe. By 1900 it had been transferred to more general use.

Related Words

• cut off 
• gag 
• muffle 
• mute 
• muzzle 
• quash 
• quell 
• squelch 
• stifle 
• subdue 
• suppress