I haven’t heard of this, here is the NPR article explaining the amicus brief.

The 23-page amicus brief was filed on Monday in support of Anthony Novak, who is asking the Supreme Court to take up his civil rights lawsuit against the police officers who arrested and prosecuted him for creating a parody Facebook page of their department

“Americans can be put in jail for poking fun at the government? This was a surprise to America’s Finest News Source and an uncomfortable learning experience for its editorial team,” the brief opens.

https://www.npr.org/2022/10/04/1126773469/onion-supreme-court-brief-author-interview