The term is now commonly used to describe things that are, from the viewpoint of the person using the word, in bad taste[?], indecent[?], or profane.
See also:
... 7 - Ralph Bunche[?], diplomat, winner of the Nobel Peace Prize April 16 - Fifi D'Orsay, actress (+ 1983) April 22 - Robert Oppenheimer, physicist (+ 1967) May 6 ...