He has a morbid sense of humor that not everyone appreciates.
У него нездоровое чувство юмора, которое не всем нравится.
Definitions
A morbid sense of humor refers to a type of humor that finds amusement in subjects that are typically considered dark, grim, or taboo, such as death, illness, or suffering. It often involves making jokes about serious or distressing topics, reflecting a fascination with the macabre.