Related Clues:

• Meeting the quota
• Admonition to a cell phone user in a theater
• "Stop talking!"
• 'Silence!'
• 'Shhh!,' not so politely
• ''Drop it!''
• Request for quiet
• "Stop already!"
• "Quiet now"
• Exasperated cry
• Teacher's admonition
• Reaction to a library volume?
• "Stop!"
• Once, perhaps
• Library admonishment