Fanydoism 

(n.) a word combined with a few different words.

Fany: Butt
Do: to do
-ism: a person (ex: sexism..etc..etc)

all together, it define a person who does it in the butt

1. You're such a fanydoism.

Fanydoism by vynie November 17, 2007

Fandomism 

Similar to racism or sexism. Only rather than discriminate based on race or sex, a fandomist will persecute and or make biases of an individual based on the fandom(s) he or she follows.

Dude1: Man, bronies are stupid loosers!

Dude2: Pal, thats pure grade fandomism.

Fandomism by Coolclaytony August 1, 2012

Fanboism

Fanboi is a derogatory term used to describe gamers who prefer a single product over all others despite any flaws or problems their choice may have. Fanboism is the state of being of such gayness and the gayness subculture of fanboi or fanboy
A typical 4chan console gamer will likely be a fanboi

You just like Nintendo better than Sony because nintendo has been around for over 100 years. Says one fanboi to another. Sony RULZ! Nintendo suckx. Oops I just the whole internet!
Typical fanboism conversation

Fanboism by Rubi-Pacifi-co December 9, 2008