Related Clues:

• 'Can it!'
• Last word in a wrestling match?
• Cry of surrender
• Tom or Sam
• 'That's enough!'
• 'Stop it!'
• Middle of the quip, with 37-Across
• 'Cut it out!'
• 'Quit it!'
• Word of surrender
• Amply
• Adequate
• Donald, to Dewey
• Sufficient
• 'Stop already!'