Related Clues:

• Americans refusal to exercise?
• I don't agree there's much rush, but every second counts
• Frank, putting name foremost? Definitely not
• 30-Down's counterpart
• "Can't be"
• "No way, man!"
• 'Ain't gonna work!'
• Opposite of 'yep'
• "Ain't gonna work!"
• 'I doubt it'
• "I doubt it"
• 'Ain't happenin'!'
• "Fuhgeddaboutit!"
• Informal refusal after putting Frank's name forward
• 'Couldn't be'