What is the definition of Luis Fluid?

"A 'luis fluid' is a term that's as bizarre as a cat wearing a bow tie. It's like saying something moves with the grace of a sloth but with the sass of a cactus. Picture this: 'After the party, my cat was a 'luis fluid' of emotions, oscillating between melon-headed and melon-faced in one breath and then the next, leaving me wondering if it was just a really good mood ring or if it had a phantom limb syndrome."

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And here's an unsettling example sentence: "In the abandoned warehouse, the 'luis fluid' of the ghostly apparition shifted unpredictably, leaving a trail of unexplained cold spots and an unsettling feeling of being watched by someone who's not quite as ghostly as they seem."