Related Clues:

• ''That's impressive!''
• ''Unbelievable!''
• Assassin's order
• "I'm amazed!"
• 'Yowza!'
• Crack up
• Knock dead, as a crowd
• Overwhelm with one-liners
• Amuse to the max
• Smite
• Exclamation of amazement
• "That's incredible!"
• Cause to crack up
• ''That's really something!''
• "Holy jumpin' catfish!"