Pro Troll
A Pro Troll is someone who has so fully mastered the art of internet trolling that they can troll anyone at any time and who themselves cannot be trolled--even by other Pro Trolls. To reach Pro Troll status is to reach the highest form of Trollism and is oft compared to the Hindu belief of reaching Nirvana. It is rumored that only a handful of Pro Trolls are in existence today, but this cannot be confirmed do to the reclusive nature of troll culture.
There have been no confirmed examples of Pro Troll activity. Many experts assume that this is because those involved in the Pro Trollery have since left the internet to live a life of quiet solitude, or that they fear being caught talking to authorities thus ensuring a trollicking like no other. A witness protection agency is currently in development.