Somebody who feigns expertise in a subject by using Google, Wikipedia, or other internet sources, without citing them. Generally synonymous with internet faggot, but can be used in polite company. Often preceded by "friggin'". Always used sarcastically.
John, when I googled "supermassive black holes" I found a Wikipedia article that matched your post word-for-word. You're a real friggin' internet genius, aren't you?