to get quiet=pipe down= to be quite= to hush
example: The teacher asked the children to pipe down in the classroom. Everybody pie down. There is no need to shut. Ella asked them to hush their voices.
Button your lip
Shut your ( cake/pie ) hole! = shut up!; Shut your mouth!
حسن زاده
Keep quiet.
Pipe down.
Put a sock in it.
