comedy that employs morbid, gloomy, grotesque, or calamitous situations in its plot.
Origin of black comedy
First recorded in 1965–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
first recorded 1961, from black (adj.) in a figurative sense of "morbid;" cf. French pièce noire. In a racial sense, from 1921.
Online Etymology Dictionary, © 2010 Douglas Harper