1.NounA foreign language film or television show that has been dubbed into the local language by fans, amateurs or enthusiasts rather than by professional actors and actresses.
2.NounAn anime title that has been dubbed by fans.
"The fandub Evangelion: ReDeath is shown every year at Fanime."
3.VerbTo overdub (a video) as a fan activity, translating the foreign language into the local language.