I KNOW!! all of those stories sound fantastic (and also non-earthly -- COINCIDENCE?). i think a few of the story references throughout her blog are references to BBC books, but since i'm not very familiar with them i don't know if they all are. but maybe there is a book with the Terrible Zodin?

mahahaha thanks wikipedia:
Peri claims that the Doctor has referred to her as "Zoe", "Tegan", "Susan", "Sarah Jane" and "Jamie", as well as the "Terrible Zodin". Zodin is a never-seen character first referenced in The Five Doctors and later mentioned in a Martha Jones blog entry labelled Infinty on the official Martha Jones Myspace site.

so apparently not. *sads*

but at least i now know that it is a nickname he had for peri. o___o also that doctor who fans are freakily good at updating wikipedia.