I_337 Share definition Flag An extremely geeky way of saying someone is very good at something. shortened version of elite. mostly used by gamers. someone who is I_337 is the opposite of a noob. OMG that paul kid is I_337 at counterstrike!! I_337 by Rossf91 January 1, 2009 0 0 Get merch Get the I_337 mug. Buy Now — $32.95 See more merch