User blog comment:Wyzilla94/What is Fanon?/@comment-20644-20090524001350

Fanon is also known as "fan fiction". It's basically making your own story in the Star Wars universe. You can have it fit with, which is the timeline of all official Star Wars works, or you can make an alternate universe story, like what I and a few others do with the Alternative Star Wars Saga.

Hope that helps.