Home › Words › M › mangenuemangenuemangenue means A young, inexperienced, guileless man or boy, especially in film and theater.EtymologyBlend of man + ingenue.nounA young, inexperienced, guileless man or boy, especially in film and theater.e.g.“The mangenue was easy pickings for that vamp.”Definitions & examples from Wiktionary (CC BY-SA 3.0).