Jossed

Jossed 

Refers to stories or ideas, originally intended to be canonical, which have become AU only after-the-fact because the canon material continued on and went down a different path than the fanfiction author expected. Derived from show writer/creator Joss Whedon, who was particularly adept at twisting the canon in sudden and unanticipated ways. Originated in the Buffy: The Vampire Slayer and Angel: The Series fandoms, but has since been procured by many other fandoms as well.