In t.v. series that are derived from other forms like books or comics, fillers are episodes that did not appear in the book or comic. The creators of the television show make up episodes (that are normally really bad) and air those episodes that because they just needed to air an episode and they couldn't use a real one. Fillers can also be used to give the television show creators more time so that the book or comic creators can get farther ahead of them so that they don't catch up to the book or comic.
Something that is would like to point out is that the anime Naruto which was derived from the manga Naruto has had about 3 seasons of fillers because the anime nearly passed the manga.
"The worlds hottest new curse word. Kleemin. We'll tell you what it means after this." Said Tom Tucker on the popular animated fox television show Family GuyTM. It was never said on the show the true definition of the word is some people believe it is a word that is used to curse at insane people however this has not been proofed. Curently the word can be used for any time you want to swear for instance "Goto kleemin you kleemin kleemin." is an acceptable sentance.
"You're such a kleemin."
"Go kleemin yourself."
"I'm gonna kick you kleemin."