Fillionite 

A term for fans of the Canadian actor Nathan Fillion who currently stars in the ABC hit TV show Castle as the mystery novelist Richard Castle. Another term would be Fillionaire. Fillion is also known for playing Captain Malcolm "Mal" Reynolds in the sci-fi TV show Firefly and movie Serenity and Captain Hammer in the online web-series Dr. Horrible's Sing-Along Blog. Every Fillionite knows how double rainbow Nathan is and will always support him.

Nathan Fillion is my idol therefore I am a Fillionite

Fillionite by CastleBecks October 30, 2012

fictionite 

Slang for a religious person.
One who believes author-less books.
One who worships any god.

Fictionites believe in the Big "B" Book, though they argue over which version is the real one even though all are author-less and constantly edited.

fictionite by I.Ron.Hors March 22, 2008

fillicite 

Derived from “fillicide” which corresponds the act of a parent murdering its offspring, fillicite is the noun for the perpetrator involved in such case, the parent.

Josh: Emma has some serious fucking issues, she’s absolutely mental when you guys aren’t around, the amount of red flags ranges from gaslighting to physical outbursts. I am worried about her son, because she could hurt him anytime.

Sarah: She’s showing obvious signs of a fillicite, we should call the authorities.

fillicite by Enkommunistjävel September 13, 2023