Related Clues:

• Word before whiz
• ''I don't believe it!''
• "Holy moly!"
• Impress, and then some
• 'Whillikers!'
• 'I don't know' lead-in
• "Imagine that!"
• ''I'll be a monkey's uncle!''
• ''___ willikers!''
• “Holy cow!”
• "Holy Toledo!"
• "No fooling!"
• ''Hmm, I don't know''
• ''I hadn't thought of that''
• '-- whiz!'