Cool, well-informed Horde player: Yeah dude you just got Lawsowned.
In short, to be Lawsowned, is a more narrow version of getting pwned. Specifically it is used on the idiots that defended their executioner.
Dude2: "Lucky for me, I opted for Lawson's waiting list. Been on it for 8 months now. Almost there!"
Dude: "Hey asshole, you just got Lawsowned!"