Noun
multiple personality disorder (countable and uncountable, plural multiple personality disorders)
(psychology, informal, dated) Dissociative identity disorder.
Synonym: MPD
I was diagnosed with everything from schizophrenia to multiple personality disorder. Darrell Hammond
My significant other right now is myself, which is what happens when you suffer from multiple personality disorder and self-obsession. Joaquin Phoenix
The art of the novelist is not unrelated to the illness of multiple personality disorder. It's a much milder form. But the better the book, the nearer to the padded cell you are. David Mitchell (author)