1. (v)- In the online gaming community, to merk someone is considered the ultimate act of pwningn00bs using craft and precision to exact said n00b's death. The situation is generally exacerbated by prolific trash talking, and consummates in excessive tea bagging and/ or a gonzo.
2. (v)- The act of destroying an individual in real life in a sexually or physically abusive way.
"Holy crap, Leroy! When that guy got merked by that 50 cal in Modern Warfare 2, his head exploded like a melon!"
"Jimminy crickets, Batman! The Joker just merked Catwoman and then tea bagged her for hours!"