Answer: zipit

AnswerCrossword Clue
ZIPIT"Shut yer yapper!"
ZIPIT"Shut up"
ZIPIT"Shaddup"
ZIPIT"Not a peep!"
ZIPIT"Shut your trap!"
ZIPIT"Button your lip!"
ZIPIT"Shut your pie hole!"
ZIPIT"Shut up!"
ZIPIT"Not another peep out of you!"
ZIPIT"Oh, hush!"
ZIPIT"Hush!"
ZIPIT"Quiet!"
ZIPIT"Not another word!"
ZIPIT"Shh!" from a mail carrier?
ZIPIT"Shh!"
ZIPITSlangy "Quiet!"
ZIPIT"Not another peep!"
ZIPIT"Shaddap!"