This joke is funny because the word "swing" (the part you sit on on a swing set) is phonetically similar to the word "swing" (a dance movement or musical style), a reference to the song by Ella Fitzgerald, whose lyrics include "it don't mean a thing if you ain't got that swing". https://t.co/CFI8EM5Dw0
— Explainer of Jokes (@JokesExplainer) Jun 12, 2022