Top Definition
A super smash player who is the best Mario player in the Midwest. He is a huge furry who will stop at nothing to maintain that he is indeed called Bo X7 and not Box7 or Box 7 or whatever the hell he hates. Bo X7 is also the world's second most perfect being, right behind Mew2King. He shares all the same traits as Mew2King, like being an approximately Black and 7-foot tall. However, the thing that makes him less perfect is that he lacks Mew2King's glasses, which would magnify his perfect blue eyes.
A Bo X7 is somebody who plays Smash Brothers and performs Furry activities.
by Lolicantroll February 09, 2010

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