Related Clues:

• Noncommittal response
• 'Whazzat?'
• 'What?'
• "What's that you say?"
• Sound of confusion
• 'Say what?'
• Sound of hesitation
• “What’d you say?”
• "What did you say?"
• "Come again?"
• 'What?!'
• ''Come again?''
• "Say again?"
• 'Er-r …'
• 'Let me think ...'