JK Rowling’s 13 Snarkiest Tweets: From Trump Burns to Fan Clapback (Photos)

JK Rowling turns 52 on July 31st, but she’s not dialing back her sass anytime soon. Since Rowling opened her Twitter account in 2009, the Internet has been privy to the wit, charm, and — most of all — snark that made “Harry Potter” one of the best-selling series of all time. From Donald Trump to Piers Morgan to anonymous Internet trolls, Rowling rarely holds back when something gets her attention. Here are 13 of her greatest hits. Happy birthday!

Rowling has a long-standing feud with British journalist and television presenter Piers Morgan. Here’s one memorable exchange where Rowling (definitely) came out on top: she tweeted a screenshot of a complimentary article about her and asked for the writer to come forward. Morgan was quick to respond, writing, “Priceless #humblebrag BS. Nobody plays the celebrity game more abusively or ruthlessly than you, Ms ‘Intensely Private Billionaire.'” Of course, turns out that Morgan was actually the person who wrote the article in the first place. Oops.

After a Twitter troll mocked Serena Williams — aka one of the best tennis players of all time — for being built like a man, Rowling defended Williams like a boss, posting a picture of Williams in a red dress and writing, “‘She is built like a man’. Yeah, my husband looks just like this in a dress. You’re an idiot.”