Related Clues:

• ''Neato!''
• 'Way cool!'
• 'Way out!'
• Far out
• Knotty
• 'Cool, dude!'
• "Sweet!"
• Cooler than cool
• Swell, '90s-style
• "Awesome!"
• X-ray dose
• Physicist's unit
• Gnarly
• "Groovy!"
• 'Gnarly!'