l33t is internet slang for "Elite", supa is shortened from "Super" and h4x0r is again internet speak for "Hacker" so you end up with Elite Super Hacker which is a person who is really good at hacking (consult dictionary for definition of hacking) l33t supa h4x0r is actually a cheat in a game called Age Of Mythology which allows unit production, building and peasant gathering to speed up immensly
by Nightbringr December 26, 2009