1. Someone who pompously tries to win arguments by talking over the other person despite making logical fallacies.
2. Named after the pompous FOX News anchor who keeps talking over his guests.
Guy 1: "Is Edgar an idiot or what? He keeps talking over me when I talk to him and he tells me I'm wrong without explaining why."
Guy 2: "Dude, just don't talk to him. He's just another Bill O'Reilly."