Do you know ghouls from goblins and ghosts?
a mental disorder characterized by a normal person's obsession with an imagined defect in physical appearance; also called [muscle dysmorphia], dysmorphophobia , reverse anorexia
Bigorexia tends to affect males more than females because men are under more pressure to be toned and muscular.
based on anorexia, big + Greek orexis 'appetite'
See muscle dysmorphia
See reverse anorexia nervosa