Juan's Magic Trick is when you and your partner (preferable male) shove a whole jar of Ragu into your asshole. After 2 1/2 minutes the jar will evaporate. Make sure to plug up your asshole so none of the Ragu falls out then get your partner and open up his foreskin. You need to pull out the butt plug and let the Ragu pour into his foreskin. After that tie up your partners foreskin for 3 weeks and then once you untie it the Ragu will be gone
Person 1: "Hey do you wanna do Juan's Magic Trick."
Person 2: "No what the fuck is wrong with you"