Related Clues:

• Grifter's ploy
• Dupe's undoing
• Shady deal
• Pyramid scheme, for one
• Pyramid scheme, e.g.
• Taking-in activity
• Sucker play
• Phony deal
• Shell game
• Play for a fool
• Patsy's downfall
• Pigeon drop, e.g.
• Deceptive scheme
• Money-losing proposition
• Pyramid scheme