Queer Rangers. It's a code to show that you're queer and trying to turn others queer. Morticians put things in dead bodies that will turn mourners queer.
It didn't used to be that way. There was a time when you could visit grandma at the cemetery and you wouldn't get the urge to take the beef bus to pound town. But now every time he goes he has anonymous gay sex in the bathroom of the public park adjacent to the cemetery. It's those QR codes causing it.
A lot of these people have their own variations on similar themes. It's funny watching conspiracy theorists argue about who's conspiracy variant is more correct. Flat earthers are notorious for this one lol