Wiktionary
sadistic personality disorder
n. A disorder characterized by cruel, aggressive, demeaning, and manipulative behavior towards others.
Wikipedia
Sadistic personality disorder
Sadistic personality disorder is a personality disorder involving sadism which appeared in an appendix of the Diagnostic and Statistical Manual of Mental Disorders ( DSM-III-R). The later versions of the DSM ( DSM-IV, DSM-IV-TR and DSM-5) do not include it.