Related Clues:

• Excellent (Sl.)
• First-class, so to speak
• X-ray dose unit
• "That's great!"
• 'Far out, man'
• 'Killer, dude!'
• "Terrif!"
• "Super!"
• "Gee!"
• ''Neat-o!''
• Totally dope
• ''Terrific,'' in '80s slang
• Awesome, in surf talk
• Kick-ass
• Apartment 1-A resident, maybe