Related Clues:

• ''Um, excuse me . . .''
• Audible nudge
• Subtle warning sound
• "I'm talking to you!"
• "What's the big idea?"
• "Could I interject?"
• Attention-getting noise
• Oral interruption
• ''Sorry to intrude . . .''
• [You've got a booger]
• One-third of Fat Albert's catchphrase
• 'Attention please ...'
• ''Sup'
• "I'd like to say something"
• Sound before 'Your fly is open'