A musical play by Andrew Lloyd Webber, stolen from a poem book by T.S. Elliot, in which people dress up in fabulous/stupid cat costumes and sing the exact the words of T.S. Elliot's poems; mixed with some original, but dumb, songs by Webber. The musical is most famous for the ballad, 'Memory'.
Man #1: Hey, I've got two tickets to Cats. You wanna come?
Man #2: The musical Cats? What are you, too lazy to read the book?