"Sexual deviancy" refers to behaviors that are considered outside of societal norms or expectations regarding sexuality. These behaviors may include fetishes, exhibitionism, or non-consensual activities. Full definition
In 1834, a young woman named Rebecca Reed published Six Months in a Convent, her account of sexual deviancy at an Ursuline convent in Charleston, Massachusetts from which she claimed to have escaped. (firstthings.com)
Books about sexual deviancy among Catholic priests and nuns were popular in the nineteenth century. (firstthings.com)
Jelinek, through Haneke, tries to explain why a person becomes this way, though the main interests of the cancerous growth of sexual deviancy moves to another character as the film continues. (cinema-scene.com)