Filler

[Sarah]

One who, or that which, fills; something used for filling.'T is mere filer, to stop a vacancy in the hexameter. Dryden.They have six diggers to four fillers, so as to keep the fillersalways at work. Mortimer.

[Sarah]

A segment of anime, whether it be an entire episode or part of one, which does not appear in the manga of the title. Fillers, as the name implies, fills an episode with non-canonical material which has been written usually by the same company which animates it.
Animation companies utilize fillers for a number of reasons:
** If the companies feel that the anime is catching up to the manga too quickly, they will insert entire filler episodes to allow the manga writer to write more chapters.
** Anime versions are usually able to adapt at least two manga chapters per anime episode. If the anime writers feel that a crucial chapter should not be aired in the last part of an episode, they will add a filler segment to make up for this, and air the crucial parts in a fresh episode.
** If the anime gains huge popularity amongst the viewers, anime companies often add fillers to extend the anime, capitalizing off the popularity (one example of this is [Naruto], airing fillers for over a year, turning the anime stale).

[Sarah]

A member of a social group who has little/no popularity and is merely involved to make numbers, rather than to add to the group. Fillers have no intellectual or comedy value and any attempted input is usually ignored or completely disregarded. A Filler is the sort of person who you wouldn't be seen with dead.

[Britney]

An ex boyfriend/ girlfriend you still associate with that you like to hang out with, go out with between dating other people or when youre bored and no one else will. Theyre filling the time between that. You know theyre never going to be anything serious again.

[Rihanna]

A phone call that is made to a mate or partner simply for the purpose of killing time while travelling on a boring journey.

[Jason Yan]

When you go to a search box of a general website, and suddenly your mind goes blank of what you were going to do, so you fill the box in with a phrase such as lol or some other random crap that was on your mind so the search box doesnt feel lonely.

[Little_Girl]

In [fantasy football] , a filler is the manager of a team who is really only there to make up the numbers.

[Lanell]

A term used in anime when there is an episode that does not appear in the manga