J.K. Rowling delivers work-of-art smackdown to Twitter sexist

Tennis star Serena Williams won Wimbledon, to the satisfaction of many, including author J.K. Rowling, who posted the above commendation.

A sexist, racist dork objected — "ironic then that main reason for her success is that she is built like a man" — and got made this weekend's sexist, racist prop in a righteous celebrity smackdown:

This isn't Rowling's first rodeo.