Top Definition
A YouTube Let's Player, markiplier usually plays obscure scary games and other obscure games no one has ever heard of. Seems to be succeeding more then PewDiePie.
Mike: Hell yeah, markiplierGAME! His reaction compilations are the funniest! Better then PewDiePie!
10 year old swine: u stupid fag pewdiepie dminates all
Mike and 3 other people in the chat room: Gtfo, please.
by Ryouu April 02, 2013
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