Related Clues:

• 'Good going!'
• 'Uh-huh'
• 'You bet!'
• Slangy approval
• Oater affirmative
• 'Why not?'
• '___, right'
• Enthusiastic response
• 'You said it!'
• 'Indeed!'
• See 12-Down
• 'You betcha!'
• 'Oh, sure'
• '___, right!'
• Part of a Beatles refrain