Related Clues:

• Emphatic no
• 'When hell freezes over!'
• Exuberant exclamation
• Sea mackerel
• ''Absolutely not!''
• Not just 'no!'
• 'Whoopee!'
• Emphatic refusal
• 'In your dreams!'
• Shout of disapproval
• Exuberant cry
• "When pigs fly!"
• "Not gonna happen"
• Large, swift mackerel
• Not in a month of Sundays