Related Clues:

• Swell in the '90s
• Old-school 'Cool!'
• Spot on the face, informally
• ''Terrif!''
• What was cool in the '80s?
• "Awesome, dude!"
• 'Wow, cool!'
• Cool relative
• "Tubular!"
• 'Tubular!'
• “Totally tubular!”
• Cool, '80s-style
• Awesome, in the '80s
• “Awesome, dude!”
• Meas. equal to 180°/pi