Related Clues:

• 'That's great!'
• Skater dude's exclamation
• More than serious
• Overwhelming
• 'So cool!'
• Fraught with danger, as circumstances
• ___ straits
• Hardly looking good
• Desperate, as a warning
• "Excellent!"
• ''Like, stupendous!''
• Like some oaths or vows
• "That's great!"
• 'Killer, dude!'
• Hardly laugh-provoking