Related Clues:

• Cool, in the '60s
• ''Peachy keen!''
• "So cool!"
• ''Cool!''
• ''Super!''
• Nifty, to The Beave
• "Cool beans!"
• ''Gee, that's swell!''
• ''Rad!''
• Ducky
• 'Fantabulous!'
• Supercool
• ''Swell!''
• Nifty in the '50s
• "That's awesome!"