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1. A term used to express someone's skill at hacking. Now outdated due to the number of "n00bz" who feel it is cool to use a language designed to defeat a text filter as a speaking mode.
He called himself a 1337X0r h4X0r, in an attempt to show off his skill. We all thought he was an idiot, but...
by Shishire Maiga August 29, 2005
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