Related Clues:

• 'Out of sight!'
• Good, at the beach
• "Far out!" to a physicist?
• 'Totally tubular!'
• Sleep phenom
• Sleep phenom, for short
• 'Shiny Happy People' band, 1991
• "Radio Free Europe" group
• “Far out!”
• Dream state, for short
• 'Awesome, dude!'
• 'Sweet!'
• 'Neato!', '90s-style
• 'Far out, dude!'
• Very cool