What is the definition of Normally Fluid?

"Normally fluid" means a substance that moves easily and smoothly, like water in a bathtub on a sunny day. It's the kind of thing you'd see when you're just chilling out, not battling your way through life.

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But here's an edgy example sentence: "The normally fluid state of the town's residents after a week off was suddenly turned into a sluggish, gloomy mess, like when your dog decides to become a hermit and refuses to roll over in the sun."