What is the definition of Complaint Macabre?

A 'complaint macabre' is a delightfully morbid complaint that's so gruesome, it makes your giggles weep. It's like when your cat starts drooling and you think, "Oh my, this is a macabre complaint about a feline's sweet, sticky paw-print!"

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Here's an unsettling example sentence: "Despite the new horror movie being a spooky, macabre take on 'The Exorcist', I still can't shake this complaint: my neighbor's cat keeps whispering 'Barnaby's back!' at 3 AM."