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1.
A bad guy from the Street Fighter video game
Only a true geek could tell you M.Bison's name is Vega in Japan, is the founder of the criminal organization Shadaloo, killed his martial-arts master who taught him Psycho Power, killed Chun-Li's father, created Cammy to inhabit, created Rose to dump the good side of his soul into and later inhabited after failing to inhabit Cammy, was blown up by Charlie and Guile, and finally killed by Akuma.
 
2.
1. (noun): One of the Main Villains in the popular Street Fighter franchise. In America, this is the name of the Dictator that runs the evil coroporation known as Shadaloo. In Japan, this is the name of the Boxer also known as Balrog in America, hence "Mike" Bison, who is based on boxer Mike Tyson.

2. (verb): In a fighting game, namely Street Fighter, this means to go easy on your opponent in the first round of a match, then unleash your full potential for the rest of said match. Coined from when fighting the Dictator as the final boss in Street Fighter II, the A.I. will go easy on the player in the first round, then unleash all Hell upon him/her afterwards. Note that in online play of any fighting game, this is a risky maneuver to try, namely because you don't know the capabilities of your opponents, and that if you succeed in pulling it off, you may make the loser RageQuit and sob all over their now-broken controller because you have raised their hopes of winning, then effectively demolished them.
1. M. Bison in Japan is the boxer that looks like Mike Tyson, and in America, he is the dictator who everybody else in the game wants to kill.

2. New Player: YES! I won the first round!

Veteran Player: Good Job! Now I don't have to hold back!

Frightened New Player: Wait, Wha-

*Veteran Player destroys the shit out of New Player*

New Player: *RageQuits* WAAAAAAAAAAAHH!!! MOMMY!!! THAT GUY M. BISONED MEE!! I'M GONNA BITCH AND MOAN ABOUT HOW GAY AND CHEAP HE WAAS!!! WAAAAAAH!!!
by BlackTAP118 August 13, 2011