Liver King is a youtuber who promoted a diet of eating only raw meat and then his popularity fell off when it was leaked that he did steroids.

https://www.instagram.com/reel/DLRR153tW1W/ (this is the video where he threatens joe rogan)

https://xcancel.com/AmiriKing/status/1937380475095646736#m (mirror of the video, probably a chud account)

https://en.wikipedia.org/wiki/Liver_King