What is the definition of Johnny Engineering?

"JOHNNY ENGINEERING" is like a genius with a slightly off-kilter brain, but instead of designing bridges or rockets, he's obsessed with creating the most chaotic, yet somehow endearing, video game levels. It's like he's an over-enthusiastic, hyperactive kid with a PhD in existential dread, but with more neon-colored crayons and an even bigger appetite for video games.

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Example sentence: "After Johnny's engineering of the 'Level 42: Quantum Leap' got him the gaming community in a frenzy, our local coffee shop decided to name their new espresso machine 'The Johnny Engineering Express' - a nod to his insane brain and his latest project."