What once was the concept, used by Psychiatrists, to describe those who had an abnormal desire to deviate from accepted social behaviour patterns. In many cases, it had a sexual connotation or was in reference to specific sexual behaviour.
Was originally used to describe those who were Homosexuals.
In earlier times, was also used to describe those who had the urge to masturbate frequently.
Usually used to describe behaviour that is excessive, beyond the orthodox or normal standards of a culture, or society.
Now the term 'paraphilia' is used to describe one who has excessive behaviour or obsessions, that effect their daily lives.