What is the definition of Geometry Macabre?

"Geometry macabre" is like a twisted dance of shapes and shadows, where the usual rules of math are turned upside down by eerie, macabre aesthetics. Imagine a perfect square with a flickering candle at its corner, casting ominous angles that would make the most morbid of skeletons chuckle.

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Example sentence: "The architect's geometry macabre mansion, built entirely from the remnants of a long-dead vampire's gothic cathedral, promised to be a masterpiece of unsettling proportions."