Related Clues:

• Wow!
• Relative of 'hmmm'
• "You don't say!"
• 'I'll be darned!'
• Kin of "Golly!"
• Word before "I don't know"
• Arouse great enthusiasm
• Regale an audience
• Whiz lead-in
• 'Well, I'll be!'
• Huge success
• "Aw" follower
• "That's amazing!"
• Turn right
• Knock one's socks off