You measure it by how fast the other dps in the group become unconsious when you slap them with your E-Peen.
If you kill them with it, then you're just below my dps.
If they die the moment they behold it? Then you're getting warmer.
If they refuse to group with you and immediately delete their accounts when they see your name in the group formation, even if it's x-battlegroup? Then you've reached Sheg potential.