To take an argument and research every possible aspect of it on Wikipedia, memorize the most relevant facts, mull over your side of the argument until its finely honed like the edge of a samurai sword, then attack the people who are opposing your viewpoint and then metaphorically slice them into tiny bits while refusing to accept alternate viewpoints.
A very unclean, dirty, & otherwise grubby person that shops for clothing & apparel on Craig's List and has a general distain for personal hygiene. Sometimes referred to as a grubby bear.