It comes from the title of a book
https://cdn2.penguin.com.au/covers/400/9780679763987.jpg
In a dictatorship of virtue everyone is expected to kowtow, acquiesce, and in general be politically correct all the time. You have to put up with and do what the radical Left wants in terms of that. So, you have to accept the entirety of the LGBTQPDQRSTUV+ stuff no matter how insane it gets. You have to use the 'pronouns' someone demands no matter how absurd they are. You have to say the right things or be slapped as a lying disinformation spreader no matter how true what you say is.
It's a twist on
1984 where social reality is made up on the spot like everyone is five years old and acting like it. The only thing is, that there are people enforcing all of that and if you don't comply they ruin you or toss you in prison.