1. Paraphilic individual, more often a male, who derives sexual gratification from observing unsuspecting people, almost always strangers, undressing or engaging in sexual behavior; the risk of discovery heightens the pleasure. The voyeur will usually masturbate during or after the peeping. This definition includes people who watch themselves and their partner during sex. Voyeurs generally have a history of insecurity and fear of rejection.They rarely approach or harm their victims; there has been very few reports of rape associated with voyeurism.