A person who is completely addicted to MapleStory that plays over more than 5 hours per day. If one attempts to diss MapleStory, the MapleStory fanboy will immediately throw a fit and will do anything at any cost to claim that MapleStory is the superior free game available on the PC.

The reason for their agressive behaviour is that Nexon. Inc , an evil greedy gaming company, brainwashed them into playing MapleStory.

Most MapleStory fanboys are either:
-Kids under the age of 13 (Not joking)
-A teen looking to socialize to gain vitural friends and a boyfriend/girlfriend
-A grown adult(mostly virgins) that's afraid to grow up because he loves to play a childish 2D games.
-Geeks or nerds that are obsessed of being the best in every game no matter what it takes.

They're usually fun to troll because they do ANYTHING to say that MapleStory doesn't suck even though everyone knows this is true.

FACT: If this defination gets thumbs down then it's mostly likely a MapleStory Fanboy. I would like to say "fuck you" to the MapleStory Fanboys reading this. =)
Saanzan: Holy shit, this Mario flash game is much more fun than MapleStory. Beside, it was a shitty game.

MapleStorySlave: OMG UR A FUCKIN FAGGIT!!!!11 MAPLESTORY IS THE BEST GAME EVER!!!!!! I THINNK IT SHUD GET GAME OF THE UNIVERSE!!!! HOLY SHIT THAT SHUD HAPPEN

Saanzan: Oh, shut the fuck up MapleStory fanboy. You're brainwashed. One day before you die, you'll realize that game is shitty.

MapleStorySlave: WATEVER FAGGIT PLZ DIE PLZZZ LOL
by Saanzan August 4, 2010
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