A group of three persons or entities of a vaguely malignant nature.
Look, that's Bob, Dick, and Harry! Here comes the troika.
the affliction of dogmatically taking the opposite stance on the current thing to that of the main stream media
"I do not have the oppositional defiance disorder that some people have. .. There are a lot of people who are now in a position where the way that they determine what is true, is they go, 'What is the main stream media saying? It must be the opposite of that.'" - Konstantin Kissin 2023