PWN3D

From Wiki Gonzalez

PWN3D is l33t-speak for "owned". From Wikipedia, "The slang use of the term originated in computer security, as a slang term for a computer system having full control, figuratively "ownership", compromised. "I own your computer".

An amusing and fairly accurate definition, from a Slashdot comment on 9/25/06: "When you have totally humiliated and/or beaten someone, you have "owned" them. A "p" is just an "o" with a stick on it, so "pwned", in my mind, is "owned with a stick"."