What does Xemnas stand for in Kingdom Hearts 2

"Xemnas" is "Ansem X", following the trends in all Organization XIII's nobodies' names (ex. Axel = Lea X, Roxas = Sora X, etc.), shows that Xemnas is "Ansem"'s nobody. This is the "Ansem' from the first game, NOT Ansem the Wise.

Fangirls often reverse the letters in "Xemnas" to spell "mansex" instead of "Ansem X".