Related Clues:

• 'Am too!' retort
• Brief comeback
• Retort to "Am so!"
• Childish denial
• 'We __ alone'
• "We __ alone"
• Schoolyard denial
• Playground crack?
• Ain't, formally
• Ain't using proper language?
• Longer 'ain't'
• One side of a playground argument
• Commonly contracted two-word phrase