Related Clues:

• "Totally tubular!"
• Cool, 30 years ago
• 'Suh-weet!,' quaintly
• 'Wicked cool!'
• Car part, for short
• Groovy cousin
• 'Awesome,' to a 1980s skateboarder
• “Far out!”
• “Swell!”
• Radical cousin
• 'Swell'
• 'Cool!,' '90s-style
• 'Righteous!'
• Robotic vacuum cleaner brand
• "Super cool!"