A fork of Rural Dictionary
Legendary and very, very evil antihero known as the kickass superguy Xan the madman. His skills and powers are beyond human perception, yet to some.... he's an idiot with the IQ the size of crap.
Joe: Is that a bird? Is that a plane? Is that superman?!?! Schmoe: It's....... just xandman...
A counter-word to "shut up" or "shut the fuck up". But deep inside, you want the person to uninstall his/her intellect, if any.
Joe: Why don't you just shut up?! Schmoe: And why don't you shut the fuck down?!