Related Clues:

• "Holy jumpin' catfish!"
• 'Gadzooks!'
• Watts intro
• Start for bucks or deal
• See 73-Across
• Great success
• Jumbo
• Big start?
• Prefix with byte or hertz
• Humongous prefix
• 'Damn!'
• 'Great Scott!'
• Prefix with ''phone''
• ''That's amazing!''
• Kilo- times 1,000