Related Clues:

• 'Just stop!'
• "Zip it!"
• __ money
• 'Stifle!'
• 'Shut yo' mouth!'
• It may precede 'Don't let anyone hear!'
• "No whispering!"
• Library reminder
• Silencing sound
• ''Stop it this instant!''
• Be still
• Crowd silence
• "Quiet, please!"
• 'Zip it up!'
• Librarian's reprimand