Related Clues:

• ''Super!''
• Super cool
• Cool, to surfers
• Auto part
• Aptly titled 1980s BMX movie
• "Cool beans!"
• Radiator, for short
• It was rad in the Sixties
• "Right on!"
• Excellent, slangily
• 1974 David Essex hit
• "Far out, dude!"
• ''Far out, dude!''
• ''Unbelievable!''
• "Phat!" relative