pipe down
Intermediate (B1) informal
to be quiet or tell someone to be quiet
"The crowd finally piped down after a few minutes."
Hear it in context
Scott Horton: The Case Against War and the Military Industrial Complex | Lex Fridman Podcast #478
Lex Fridman · 595:44
Washington pipe down, right?
TMZ Is FINALLY Using Their Powers for Good
Brett Cooper · 14:01
just like pipe down and let them try
Pompeii Changed How I Think About The Roman Empire - Smarter Every Day 310
SmarterEveryDay · 28:43
[D] It looks like they held the It looks like they held the pipe down.