From Wikipedia:
The verb to pwn (past tense: pwned, pwnd, pwn’d, pwnt, pooned) as used by the Internet gaming subculture, means to beat or dominate an opponent. While it probably originated as a typing error of the word own, it is now used intentionally by many members of the subculture. The term has become so ubiquitous in Internet circles that it is often used outside of gaming contexts; for example, “He just got pwned in that debate” or “The hunters pwned that bear.”
Or:
This. This would also be considered pwnage in my book.
Hah.
