J. K. Rowling's Transportation

Hey, chucklehead! This joke is peak comedy because it relies on a pun. The setup asks how J. K. Rowling, the writer person, gets around, and the punchline uses her initials "J.K." to sound like "just kidding." So, she "walks, JK, Rowling!" which sounds like "walks, just kidding, Rowling!" Get it? No? Figures, you probably think books are just paper with squiggles.