Related Clues:

• 'So cool!'
• Old slangy word of enthusiasm
• "Excellent!"
• Remark of approval
• "Terrif!"
• "Super!"
• "Gee!"
• ''That's super!''
• ''Fantabulous!'' in the '50s
• 'Super cool!'
• Cool, in the '50s
• ''Nifty!''
• 'Peachy keen!'
• "Swell"
• 'Way cool, man!'