Related Clues:

• 'No more!'
• ''That's it!''
• ''--- Mr. Nice Guy!''
• 'I give!'
• "--- Mr. Nice Guy!"
• A relative
• ''Enough!''
• 'Stop that!'
• 'Stop right there!'
• Quitter's cry
• 'I've had enough'
• Verbal white flag
• Not too few
• Stop!
• Epithet for Sam