Related Clues:

• Pig Latin refusal
• Slangy turndown, and a hint to how 17-, 22-, 32-, 47- and 51-Across are formed
• 'Nope ...'
• Grunting negative
• 'Not gonna happen'
• ''Nothin' doin' ''
• Retro refusal
• ''Don't do that!''
• Pig Latin 101 word
• 'Nah'
• Informal warning
• "Negative!"
• ''Forget it''
• "Negatory!"
• ''I'll pass''