In case you didn’t know, that’s ‘owned’ in Leetspeak.
What the hell is Leetspeak?
Glad you asked
You were probably probably familiar with it if you’re a gamer. I”m not, so I looked it up as I was continually coming across it on sites like Gizmodo.

Definitions of pwned on the Web:

* Pwn is a leetspeak slang term that implies domination or humiliation of a rival, used primarily in the Internet gaming culture to taunt an …
en.wikipedia.org/wiki/PWNED

* To be defeated, especially in an extremely humiliating way; A ‘Perfect Own’: when one person kills the other without taking any damage themselves
en.wiktionary.org/wiki/pwned