Related Clues:

• Impossibly, informally
• ''When pigs fly!''
• ''Nope''
• 'Not a chance'
• 'Naw'
• 'Skip me'
• No, slangily
•     'Fuhgedaboutit!'
• ''I don't think so!''
• ''Fuhgeddaboutit!''
• ''Think again''
• 'Yup' opposite
• 'Ain't gonna happen'
• 'Dream on!'
• 'Forget about it'