Related Clues:

• 'That's amazing!'
• 'Keen!'
• 'Totally cool!'
• 'That's awesome!'
• 'Groovy!'
• 'Swell!'
• 'I'm impressed!'
• 'Rad!'
• ''Great!''
• ''Peachy-keen!''
• Way cool
• 'Nifty!'
• "Cool!" old-style
• ''Far out!''
• 'Way cool!'