1. The verb form of "an hero".
2. The action of becoming an hero.
Guy 1: I heard you banged a fat chick last night.
Guy 2: I tried. She wouldn't put out.
Guy 1: Major fucking fail.
Guy 2: I know, I'm going to go an herocide.
Mass suicide over something stupid. It's the combination of an hero and genocide. It's basically genocide on yourselves.
All the cultists an herocided in the Washington Monument Reflection pool.
Emo kids should just all go to one big gathering to an herocide and get it over with.
A Canadian army? That's an herocide!