Related Clues:

• "Aw, shut up!"
• Admonition to a cell phone user in a theater
• "Stop talking!"
• "__ be?": "Is that possible?"
• 'Silence!'
• "Shush!"
• Request for quiet
• "Quit fidgeting!"
• Closing statement?
• 'Shaddap!'
• Teacher's admonition
• Reaction to a library volume?
• Library admonishment
• "Zip it!"
• 'Stifle!'