PWND - "owned"
Nerdish word created and readily used by people that get kicks out of flaming chat areas with poor spelling and/or bad typing errors. Sadly, typing "pwnd" gives them a greater sense of achievement over typing "owned".
A word from a "language" (used loosely)created by a bunch of internet junkies who are either too lazy to type out, or too uneducated to know how to spell actual words from the English Dictionary.
i pwnd ur @$$ l@$t nite, n00b. (note, the only "word" from that sentence that can be found in the English Dictionary is I, which is supposed to be capitalized)