What the... OK, so we all know that socialising is kind of hit or miss in games like Rust or DayZ, but I... what?
Beware that there are digital penisi as well as foul language that some might find funny, others more questionable.
The short of it is that there's a band of self-named "Penis Brothers" wandering around naked together and forcing players they meet to choose: take your pants off or they kill you.
If you do decide to embrace the way of the brotherhood, they'll initiate you. Which, as I'm sure you can imagine, is as crude as the entire act itself is. It involves lining up in a "penis train" formation and thrusting into each other (or emulating the act of thrusting as best as a keyboard will allow).
Yeah... you've been warned, I guess?