ghoul
n.n. a creature from Middle Eastern stories that eats the bodies of dead people. In modern slang, it is also a person who likes to watch others have sex or be embarrassed.
n. a creature from Arabic folklore that consumes human flesh, typically that of corpses. In contemporary informal usage, it refers to a person who derives pleasure from the suffering or humiliation of others, particularly in the context of voyeurism.
He is a real ghoul who likes to watch people's private lives.
The internet is full of ghouls who post videos of people's most embarrassing moments without their permission.
While the original myth depicts the ghoul as a nocturnal predator of the dead, modern usage has shifted to describe those who exploit the private misfortunes of others for their own entertainment.
Borrowed from French goule, from Persian غول (ġul) from Arabic غُول (ḡūl).