A person with an eccentric devotion to any of the arcade/console games of the street fighter franchise, often culminating in considerable skill and knowledge of the game.
1: "dude im not playing anymore you're a freaking hadorken"

2: "I'm such a hadorken I've got callouses on my left palm and right fingers"

3: Man: "Hey check it out I restored a Street Fighter 3 arcade machine for my home and then put up a youtube video explaining how i did it"
Other Man: "Hardfuckingdorken"
by fitzkrieg August 27, 2009
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