What is Dome Rock?
1.
When you run up behind someone and punch them in the back of the head, making them fall to the ground.
"You just got Dome rocked bitch!"
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2.
Verb - a gaming term where one player puts a single round through an opponent's head (dome) causing him death, usually by a sniper rifle.
Jeremy: "What the fuck just happened?!"
Jon: "You got straight dome rocked!"
See