Related Clues:

• "Not another peep!"
• 'Shut your pie hole!'
• "Not another word!"
• 'Shut your trap!'
• ''Not another peep!''
• "Shh!" from a mail carrier?
• "Stop talking!"
• 'Silence!'
• 'Shaddap!'
• 'Button your lip!'
• "Be quiet!"
• 'Shaddup'
• 'Not a peep!'
• "Button your lip!"
• Stifle oneself