Fatboyism 

Continuing a trend of eating a lot of food over a short period of time, when you know it is not in your best interest.

Bob displayed true fatboyism when he ate back to back to back at Chipotle, Five Guys, and Dominos, settling it all down with a pint of froyo.

Fatboyism by AlimonyBob November 8, 2015

fanboyism 

The collective outlook and behavior of a group of people concerning a subject (movies, games, hardware, comic book characters, etc.) which when challenged results in an antagonistic, passionate, and unreasoned response.

Rampant Fanboyism can be found on most internet message boards when such hot button subjects are discussed. You know a fanboy when you see one.

Example:
Fanboy 1: "Stupid people didn't get this movie"
Fanboy 2: "If you didn't like the movie, you should'nt come here and trash it."
Fanboy 3: It's unrealistic because.....___(fill in the blank about how this movie about flying superheroes is unrealistic.___"

fanboyism by Catperson June 18, 2007

fratboyism

n. collective reference to the negative qualities usually attributed to frat boys or Greek culture in general. These include, but are not limited to: alcoholism, assholism, sexual promiscuity, poor academics, low intelligence, low sociability with those who do not participate in Greek life, disrespect for authority, and lack of interest in issues that actually affect human existence.

Most fraternities claim to be against fratboyism, whether or not they actually succeed is another issue entirely.

fratboyism by Col. Hans Landa August 1, 2011

Femboyism 

Femboyism is the belief that the world should be run by gem boys and every form of governance should be replace by a federal Femboy agent

Examples of femboyism:

Me: I’m a femboyist
Dad: I’m disowning you

Femboyism by fxqr July 4, 2021

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

fattyism 

n. A notable quote stemming from the incredible unique mind of Fatty Payne.

Fatty: Did you know that a bag of warm water feels hotter when you put it on your dick?

fattyism by Tim U April 3, 2004

fatboyslim 

a nickname a girl would give to her boyfriend's penis, when it is extremely large.

Not to be confused with Princess Sophia.

Girl:"Does fatboyslim want to come out and play?"
Boy:"He's already been playing in my pants."

fatboyslim by quinkysecksfurmuney May 10, 2007