Related Clues:

• 'Nuts!'
• 'Uh-huh'
• 'Gotcha!'
• 'You bet!'
• 'Phooey!'
• See 1-Across
• Like
• 'No problem'
• '___ so!'
• 'I knew it!'
• Sondheim's '___ While I'm Around'
• 'Get outta here!'
• Cynic's retort
• 'Oh, right!'
• 'When pigs fly!'