He's pretending he doesn't know. How cute. GP3 stands for "Gag Point 3". Most people don't know this, but socks used to be the biggest Glory Hole Servicer east of the Mississippi. He wore a special uniform and everything. He would travel up and down route 95 to test, service, and catalog all the glory holes found along the way. He had an impeccable attention to detail. Elements such as hole diameter, safety bezels, and wall hygiene were top on his list. His database included addresses, maps, and contact information for the most frequent attendees. His designation of "GP3", while not an official title but rather self-ascribed, referenced "maximum intake length". At the time he assumed his title, it was highest/longest, but as with many things, other men with longer throats and smaller tonsils slowly began to "inch" their way into socks' market share. It was around this time that he became depressed, dropped out of the glory hole game, and began trolling message boards.