Pwn is a leetspeak slang term derived from the verb "own", as meaning to appropriate or to conquer to gain ownership. The term implies domination or humiliation of a rival, used primarily in the Internet-based video game culture to taunt an opponent who has just been soundly defeated (e.g., "You just got pwned!"). It was popular among Counter-Strike gamers before spreading through the more general Internet world. The past tense and past participle, pwned, may also be spelled pwnd, pwn'd, pwn3d, pwnt, poned, pawned, or powned.
http://en.wikipedia.org/wiki/Pwn
