Related Clues:

• Sound from an exam cheater
• "Want to hear a secret?"
• Listen!
• Verbal jab in the ribs
• 'You there!'
• "Hey, Mister!"
• Clandestine signal
• Surreptitious sound
• "Hey, Mac!"
• Secretive attention getter
• Fence’s utterance
• Reprieve
• 'Hey, over here!'
• "Come again?"
• "Hey there!"