I did a theatrical performance about puns

This joke hinges on a delightful piece of wordplay, specifically a pun, which is a form of humor that loves to twist language. The setup about a theatrical performance focused on puns creates a very specific image, building anticipation for a punchline that will tie into both theater and linguistics.

The humor mechanism is the clever double meaning of the phrase "play on words." On one hand, it literally describes a "play" (a stage production) that is *on* the subject of "words" (puns). On the other, "a play on words" is the well-known idiom for a pun itself – a clever manipulation of a word's multiple meanings or similar-sounding words for humorous effect.

This unexpected convergence of the literal and idiomatic interpretations is what makes the joke land, delivering a satisfying "aha!" moment. It's a meta-joke, a pun *about* puns, wrapped up in a theatrical bow, showcasing how language can be surprisingly flexible and funny.