John Syndrome
When a girl or group of girls like/give sexual pleasure to a boy who other boys find annoying or weird. These boys cannot figure out how this boy manages to get so many girls. Symptons include selling out your boys, backstabbing, being a snake in the grass, thinking with your balls instead of your brain and not being invited anywhere by guys.
Guy at a club:Dude how is he getting so much ass? He lives with his parents, cannot cut his own food, and is a total weirdo and a douche.
Other guy: I have no idea man. I guess he has john syndrome.