Related Clues:

• Radiator, for short
• "Right on!"
• Excellent, slangily
• "Far out, dude!"
• ''Gee, that's swell!''
• ''Far out, dude!''
• "Phat!" relative
• 'Dope'
• Kin of "awesome!"
• "Outstanding!"
• Radical, slangily
• ''Rad!''
• "Neato!"
• Ducky
• 'Fantabulous!'