1. Someone who is not only gay but also is as annoying as the pokemon picachu. Usually discovered on voice chat while playing online video games. Hearing a fagachu speak creates the desire to choke them, much like the desire we all have to choke pikachu.
2. Hardcore MMORPG players who neglect basic civilized duties, such as showering, changing clothes, communicating face to face, and moving ones legs. Leaving the house only when the sun has gone down in they're cloak to feed off Taco Bell.
Holy crap, this fagachu with the rocket launcher is so annoying, I'm going to mute him.
Ralph is a fagachu now, I only see him at Taco Bell when he makes his midnight double decker runs.