Related Clues:

• Relative of 'hmmm'
• "You don't say!"
• 'I'll be darned!'
• Stunned response
• Kin of "Golly!"
• "___-la-la!"
• '___ Yankees'
• 'Pretty nice!'
• Courteous
• Word before "I don't know"
• Arouse great enthusiasm
• Regale an audience
• Whiz lead-in
• "Good work!"
• 'Well, I'll be!'