Related Clues:

• O. Henry's specialty
• O. Henry's twist
• 'Bitter' humor
• Sardonic literary style
• Sardonic style
• Literary surprise
• Sardonic literary tactic
• Satire, perhaps
• Adolph Coors III's allergy to beer, e.g.
• Dramatic device
• Swift quality
• Wry humor
• "Oedipus Rex" literary device
• Stinging surprise
• Humor with a twist, perhaps