Top Definition
Alt. Mario Brothers, Mario bro's
The Mario brothers (Mario Mario and Luigi Mario) from the popular Nintendo games.
Yo the Mario bros keep hatin' on the Koopa's.
by Dick-ioio April 30, 2006
One who must always "one up" someone
Person: Hey so I got a new phone! It's a nokia
Mario Bro: Well I got the new iphone
Person: Nice! I also got a new windows computer
Mario Bro: I have the new imac
Person: Dude....quit being such a mario bro
by awesomepersonofawesome December 07, 2011

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