A fork of Rural Dictionary
A member of a shitty cult on Google+. The group consists of 11 years olds who have nothing else better to do in their lives than harass other people. Contradicting the popular belief, the shroomboys have been around for longer than a few days. The only reason they were noticed because they decided they wanted to be professional assholes in 2018.
Carl: Is he a shroomboy?
Ryan: Yeah, look at his profile picture. He has that red mushroom hat on.