Related Clues:

• Word before and after say
• "Forget it!"
• ''No way!''
• Childish rebuttal
• Strong denial
• ''When donkeys fly!''
• Words of defiance
• See 19 Across
• Childish retort
• ''Don't hold your breath!''
• Response to a discouraging comment
• Defiant dare
• Playground assertion
• On the 31st of February
• ''Not a chance!''