Related Clues:

• "Put a cork in it!"
• [Some of us are trying to watch the movie here!]
• Movie theater reproof
• Theater reprimand
• "Quit talking!"
• Rebuke in a theater
• "Don't be so loud!"
• Sound to stop sounds
• (The baby just fell asleep!)
• Silencing noise
• "Quit spoiling the movie!"
• [Excuse me, this is a library ...!]
• 'Quiet, the show's starting!'
• 'That's a secret!'
• Racket dampener?