a person who enforces trolling upon a troll who is pissing off someone else, when doing this he or she protects and serves the weak who are trolled, while looking for lulz.
To troll a person who is trolling others, basically someone who is being an asshole to others you in return be an asshole to them by defending the people who are being trolled.
Jesse is trolling that freshmanpretty hard, we need someone to put this punk on trollbation, and harass him back.