fuckmitch is the point in which someone pisses you off so much for trying toget with a girl that you you like which makes you go off in rage because of what he does, or also defined as someone who acts alot more drunk than they really are.
Example 1: Dude ive been talking tothat girl for a month, you are being such a fuckmitch.
Example 2: Dude you have only had 2 beers, your being such a fuckmitch
A very foolish person; idiot; imbecile; cockwomble; muppet; douche bag; somebody who makes outrageously idiotic statements while convinced that they are absolutely correct; somebody who doesn't understand basic English, or other appropriate language, or grasp fundamental concepts; somebody who is incapable of reason or logic; someone who acts in an egregious fashion.