Someone who thinks their extensive knowledge of useless online jargon and acronyms, primarily those only found on urban dictionary, makes them a superior individual.
John thought his over use of the words n00b and pwned made him look smart, however they just made others confused.
John, "Did you see the n00bs in the lobby?"
Susan, "You saw WHAT in the lobby?!"
John, "Don't you know what a n00b is?"
Susan, "No, go talk to your gamer friends, Cyber Snob."