A person who purposely uses large words, and speaks very articulate, as a way to out show the people within his surroundings. Usually thinks they're better than everyone else because they use large words that no one has ever heard of. The words are usually learned from their vocabulary book in high school.
Bjorn: "The premise of the antithesis of the conjugation of the multiple sub-components is invalid."
Bjorn's friend: "Bjorn, what the hell are you talking about?! Quit being such a vocabulary nazi!"