Synonym is "pwned." Also, the e may be substituted with a 3 if the person speaks leet.
With the original use of the word it would seem most people I see using XP dont even own their own system :p
I fucking 0wn3d j00 n00b!!
Batman ownz the Joker (again)
Person B: It's a god damned game of rock/paper/scissors, asshole. Please die.