Do you know ghouls from goblins and ghosts?
"imaginary bad place," 1868, apparently coined by J.S. Mill ("Hansard Commons"), from Greek dys- "bad, abnormal, difficult" (see dys-) + utopia. Related: Dystopian.
dystopia dys·to·pi·a (dĭs-tō'pē-ə)n. An abnormal position, as of an organ or a body part. Also called malposition.