What is the definition of Years Fluid?

"Sure, folks, let's talk about 'years fluid' – a phrase so absurdly whimsical, it might just be the comedic cousin of 'I'm 35 but I still look like a 20-year-old at a high-end spa.' It's like saying life has a funny, unpredictable rhythm, and we're dancing just along to it, sometimes in reverse, sometimes not.

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Here's a bit edgier: "Years fluid spiked after I found out my grandma's great-great-grandmother was a serial time traveler." Talk about a plot twist that makes you question your own sense of temporal continuity!"