The most defiant, overwhelming, skeptical, brainwashing mastermind that you could ever cross paths with.
They can put you into something worse than a trance, and make your whole existence seem like an illusion.
When someone is being/or is Dorocious it means they are acting recklessly in an unregardless manner, basically meaning they do bad stuff without concern of the consequences of their action/s.
Isaiah was being very "Dorocious" with the lighter he had in his hand.