pronounced poh-ZEHR / POH-zer)
Whether you spell like the French or pronounce it like the Americans, it means the same thing: someone who is insincere or has an affected air about them. In the same vein, a poseur is also someone who professes to be what he or she is not. “Oh, daaahhling – you are a poseur just like that chap in John Guare’s Six Degrees of Separation!”
Example: Veronica hated that her boss and showroom manager made an idiot of himself by being such a poseur in front of their most important client, who happened to a extensively-traveled, well-educated designer who could see right through John’s ridiculous façade.