He's super - thanks for asking!
Superman is a name of a comic book character and a sex move. This is interesting as comic book fans have no sex. As always on ARRSEPedia, when there is more than one subject to be discussed in a single article, we discuss the subject that the majority of our readers will concern themselves with first.
Superman (The Sex Move)
The Superman is a sex move where you fuck a girl and then throw her out of a window. Be warned that this may be unlawful in your area, so ask the Police first.
Superman (The Character)
Superman is a character created by a couple of Nazis to glorify the White race. IRL, Superman is Clark Kent, a mild-mannered newspaperman who looks exactly like Superman, except he wears glasses and a strap on. This masterful disguise confuses everyone for an astonishing period of time. In reality, he is Kal-El, the last survivor of some planet that blew up at yonks ago. His brothers are Sonny and Michael Corleone and Tom Hagen, as his father was Vito Corleone.
OK - seriously - WTF?
The name Superman comes from the German word "Ubermenschen" which was a Nazi term for the SUPERMEN, or the Aryan race. Also, Superman is gay and has homosexual relationships with his editor, a photographer boy, his archenemy Lex Luthor, and Batman. Superman also has a line of softcore pr0n films that costar Aquaman.
The most interesting period of Superman's comics was the late 1950s and early 1960s, when the Nazis had been replaced with writers who were taking illegal drugs long before it was popular. The editor, who took the most drugs of any of them, was infamous Julius Schwartz. Under his guidance, DC Comics constantly cranked out comics that were always either awesome, stupid, or awesomely stupid. Making fun of these comics has become popular recently on teh internets.