What is the definition of Javanaise?

Ah, let's talk about 'javanaise'! Picture this: it's like a high-energy fusion of 'jive' and 'naïve', but with a dash of existential dread. It's the word for someone who's so caught up in their own whimsical, often absurd world that they've almost forgotten the harsh reality of life. They're the kind of person who thinks, "Why bother with the mundane when I can just create a world of my own nonsensical chaos?"

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Now, here's an edgy sentence to illustrate this: "The 'javanaise' jazz band decided to perform at the local diner, where they turned the existential angst of their set into a symphony of existential dread for the unsuspecting patrons."