Related Clues:

• Groovy!
• Like The Fonz
• 'Uh-huh!'
• "I'm listening"
• "You bet!"
• "Groovy!"
• Like Fonzie
• "Darn tootin'!"
• "Gotcha"
• 'Nice!'
• 'Sure!'
• 'Yeah'
• Like many a fall day
• Self-controlled
• "Nifty!"