Conspiracy Theory
con·spir·a·cy the·o·ry
kənˈspirəsē/ ˈTHēərē/
noun (archaic)
Twentieth-century term used extensively by large criminal enterprises, corrupt governments, and their complicit homogeneous media. The term was commonly used as a means of falsely denying that large criminal enterprises and corrupt governments can and explicitly do keep secrets of illegal activities as a matter of course.