Related Clues:

• "Can't be"
• "No way, man!"
• 'Ain't gonna work!'
• Opposite of 'yep'
• "Ain't gonna work!"
• 'I doubt it'
• "I doubt it"
• It makes no difference
• Feature of vacuum that's unimportant
• 'Ain't happenin'!'
• "Fuhgeddaboutit!"
• 'Couldn't be'
• Informal dissent
• 'Don't sweat it!'
• 'Um, no thanks'