I went on a date with a girl who was a professional magician.

This joke works its magic through a clever blend of wordplay and a classic subversion of expectations. The setup establishes a literal scenario: dating a professional magician. This immediately sets the stage for actual magic tricks. When the punchline reveals "she made my wallet disappear," it plays on the magician's skill, but also winks at a common, albeit humorous, complaint about dating expenses. It's a literal magic trick that also serves as a relatable, slightly cynical observation about the cost of romance.

However, the real charm of the joke unfolds with the second part of the punchline. The speaker's acceptance of the vanished wallet, because "she made my heart appear," transforms the initial financial loss into a gain of affection. This is where the wordplay truly shines, contrasting the literal disappearance of an object with the figurative "appearance" of love and emotion. It's a sweet, unexpected twist that uses the language of illusion to describe the enchanting, and sometimes costly, journey of falling for someone.