What is the definition of Shoulderspine?

Shoulderspine is like the superhero of your backside - it's a fancy term for the area just behind your shoulders, where you might find yourself in a panic if someone were to throw a pillow at you. It's the part of your body that's just trying to keep you grounded in a world full of existential crises and awkward social situations.

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Here's an edgy example sentence: "As I contemplated the absurdity of modern life, my shoulderspine screamed, 'Darn it, man, why do I even need to stand up?'"