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Basically the definition of a Pumboy is someone that has a pretty dank neckbeard, plays extreme amounts of Pokemon, snails around in overly ridiculously 'I'm here, nerdy and queer' Starwars pajamas and has a strange obsession with John Cena.
"I said to my friend the other day, that lad is a total fucking pumboy".
by Pumboymaster December 30, 2015
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