Related Clues:

• 'Good going!'
• 'Uh-huh'
• 'You bet!'
• Slangy approval
• See 22-Across
• Meaning, for short
• Cool
• 'Why not?'
• '___, right'
• Enthusiastic response
• Telephonic 3
• 'You said it!'
• 'Indeed!'
• Phone trio
• Dict. offering