Galaxy Far, Far Away

From Wookieepedia, the Star Wars wiki.

The Galaxy Far, Far Away, often abbreviated GFFA is the unofficial name given by many fans to the galaxy that is the setting for the Star Wars films and their spin-offs. This galaxy in the films is referred to simply as "the galaxy." It springs from the introduction present at the beginning of each of the films, or even fan films as well as some novels:

A long time ago in a galaxy far,

far away....

Eventually, use of the acronym GFFA became so prevalent that Del Rey named the post-New Jedi Order government the Galactic Federation of Free Alliances in honor of the term.