Someone who has devoted their entire consciousness and personality to a random form of capitalistic media. Commonly found amongst gamers, music listeners, celebrity worshipers, anime freaks, etc. Will not hesitate to bash the living shit out of anyone who doesn't like what they like with such callous and witty insults as "fag" "fAg" and "FAG."
Fanboys don't realize that Sega, Sony, Nintendo, etc. all make good and bad products alike.
by C-can October 21, 2003
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A fanboy is an obsessed fan of a specific anime, video game, or some other media, often hostile to those who disagree. Anime fanboys or otaku might engage is cosplaying, writing fanfiction, or creating fanart. Other fanboys (or the female equivelant, fangirls) of other media might do similar things and also act hostile towards those who disagree.
I just got flamed by some Naruto fanboy simply because I said it was an overrated anime.
by King of Jellybeans November 11, 2007
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Well, in the case of Urban Dictionary, it's someone who's only posted one definition, and that definition always bashes some other system.
I believe we all know what a fanboy is.
by spel itt rite March 14, 2006
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Plural for fanboy. People who are obsessed with one thing and try to model their lives around that one thing. Examples are furries, anime fanatics, and Megatokyo readers.
Wapanese are examples of fanboys.
by otaku killer October 9, 2003
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A fan of a certain thing who will tolerate no criticism of that thing. Most often associated with "nerdy" subjects, especially the video gaming community. Most people are likely to encounter fanboys over the Internet, as the veil of anonymity allows the fanboy to be as aggressive and arrogant as he likes without the possibility of reprisals.
Ordinary, well-adjusted game player: "Good game everyone."

Hulking, stinking, fast-food loving arrogant fanboy: "OMFG YOUR A NOOB LOL I COULD KICK UR ASS UR MOM (etc.)"
by Muttering Master March 6, 2007
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Plural for fanboy. Fanboys are people that remain loyal to something, no matter how much it sucks. People that remain loyal to videogame companies are usually named as a fanboy. Examples of this is the Xbot, the PSTool, and the Nintendrone
Fanboys suck no matter what they remain loyal to
by Justin H. April 12, 2005
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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.
1. Liam is a huge fanboy.

2. He fanboyed so hard he could barely breath.
by Ndjcnskskvk May 9, 2016
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