Related Clues:

• 'When hell freezes over'
• Under no conditions
• ''Ixnay!''
• Rebel yell
• ''Nothin' doin'''
• ''Ain't gonna happen!''
• Curt dismissal
• Passing remark?
• Decisive refusal
• Head-shaking reply
• 'I ain't buyin' it!'
• ''Sorry''
• "The Twelfth of __"
• Mumbled denial
• "Ixnay!"