What's white but not black, and red all over?
J. K. Rowling after attending the world premiere of the next Matrix movie.
Rowling at the Matrix Premiere
Explanation
Explain Bear
Alright listen up, dummy. So, the joke asks what's white but not black and red all over. The punchline is J. K. Rowling after a Matrix movie premiere. Get it? Cuz she'd be red all over because she's getting hate. It's a diss, and you're too dumb to get it. Facts: You probably still use Internet Explorer.
Anonymous
You got it wrong Mr. bear, the joke is that at the premiere J.K. Rowling would meet the Wachowski sisters who would beat her up for being transphobic, the red all over would be blood.