What is the definition of Deadhed?

"Deadhed" is a fun blend of dead and hedged, kinda like a confused gardener trying to prune a rose while holding a broken twig. It's the state of something that's both dead and entangled in its own demise, like a zombie's side effect of overindulging in existential dread.

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Now, here's an unsettling example sentence: "The deadhed corpse of the old man's ego, forever deadlocked in its own existential riddle, had finally succumbed to the creepy crawlies of self-loathing."