Related Clues:

• 'Not for me'
• "Ain't happening!"
• "It'll never wash!"
• "Fuggedaboutit!"
• Mission-scrapping words
• Failed NASA launch
• "Rather not!"
• NASA nix
• Canceled, NASA-style
• 'On second thought, forget it'
• A gruff no
• Astronaut's negative
• Unready, in NASA-speak
• Opposite of ''yeah''
• 'Prob'ly not'