What is the definition of Partly Macabre?

"A partly macabre dinner party is like a buffet for your soul's guts - it's got the spooky vibes but still serves up some surprisingly appetizing hors d'oeuvres and cocktails. Here's a chilling example: 'The partly macabre ghost dance at the local haunted house was so intense, I had to wear a mask of existential dread while savoring the 'creepy' mashed potatoes.'"