From The Collaborative International Dictionary of English v.0.48: Poser \Pos"er\, n. One who, or that which, puzzles; a difficult or inexplicable question or fact. --Bacon. [1913 Webster] Poseur
Poser \Pos"er\, n. One who, or that which, puzzles; a difficult or inexplicable question or fact. --Bacon. [1913 Webster] Poseur