So basically, Goofy is actually a girl or Xion is a dude in drag and this ultimately represents what Goofy's Nobody is?

I'm certain Xion will be like most of the later members in Organization XIII and be the Nobody of some person we will probably never meet in the series. Going by the anagram of the names, I'll take a guess that her real name is Ino.

Tbh, I'm more curious about the later members of Organization XIII, especially Marluxia and Saix.