Mitch Dorr refers to an asshole who is so full of themselves they think everyone has to respect them. They love sticking their big metaphorical dicks in unsuspecting persons assholes to assert their dominance. You cannot tell a Mitch Dorr they are wrong, otherwise they'll give you detention

Someone who is possessed by clout chasing. The original human is now gone and a demonic entity that feeds on clout is all that is left. An empty shell with no control of their actions, forced to blindly react to situations they think will bring them attention.