Fanboy

An extreme fan or follower of a particular medium or concept, whether it be sports, television, film directors, video games (the most common usage), etc.

Known for a complete lack of objectivity in relation to their preferred focus. Usually argue with circular logic that they refuse to acknowledge. Arguments or debates with such are usually futile. Every flaw is spun into semi-virtues and everything else, blown to comedic, complimentary proportions.

Known for using the phrase
"Object of affection = Best Ever"
However, while people only really say that as hyperbole, fanboys truly believe it.

Troll the internet to spread the gospel.

Insult/chastise others for using public forums to express an objective opinion, no matter how constructive or, respectful it may be. (Go ahead and admit that it's a good game/movie/etc. This fact and anything else will be promptly ignored in favor of cherry picking the negative, and beating you over the head with it.

Tend to resort to petty annoyance replies when backed against the wall. Usually grammar attacks and non-replies.

A fanboy is any person who is the unthinking pawn of a major label/brand. A fanboy is just about the most annoying creature on earth, particularly in the heated debate of Mac vs. PC or in the realm of politics. They tend to be really irrational, and unwilling to look at both sides of the debate: repeating things by rote and being completely partisan. Also, the typical fanboy is totally uninformed and biased to a precedent, hence the repetition of rote sayings or facts/myths.

Someone far beyond a simple fan.
No, not the tye of fan which keeps people cool.

An arrogant person who goes into an outburst every time something he likes is questioned. Fanboys usually acuse others of being fanboys. Usually use 1337 and swarm MMORPGs. Fanboys caused alot of fallouts between people when they started arguing about consoles. If you insult something that a fanboy likes, he will spam your computer up and try to insult something that you like. Most words a fanboy uses are in 1337 or end with 'X0RZ' and they spell the work 'the' as 'teh' because they think that it is 'teh ro><0|2Z!!!'
e.g. Counterstrike is teh rockxorz!

Fanboys usually use the word 'own3d' if they beat someone.
Another annoying feature of a fanboy is that if he is loyal to a console, he usually goes to rival console forums and spams the place up with inults about how his console is 'better'.
They take the 'console war' very seriously, as if it's a real war.

(Although I'm a Nintendo fan, I hate Nintendo fanboys who can't shut up because a Sony fan said that Nintendo is for kids. Dude, chill out, the console war isn't a real war!)

One who is loyal to something, usually a company or manufacturer of some sort, no matter what.

The rare form of the fangirl interested in celebrities and fictional characters as well as "geek cultures" (Doctor Who, Star Trek, etc.) If you find a fanboy you should contact the nearest fangirl immediately, as they are an endangered species.

1. (Noun) A rare species akin to fangirls but of the opposite gender.

2. (Verb) What a person of the male gender does when they get feels. E.g. flailing, squealing.

Biased people who think that the things they worship about are the masters of the universe. However, since they are biased, they will constantly bash opposing things instead of thinking about it and stating its positive and negative attributes.