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First thought: this is clearly playing with animal imagery (probably monkeys or apes), mixing biological accuracy with absurdist comedy. User seems to enjoy playful language and dark humor twists on familiar concepts. The request itself implies they're looking for something beyond dry dictionary definitions – probably someone who appreciates wit in explanations. Let me break it down: "scarlet rumped" as a compound adjective needs to feel anatomically specific but also ridiculous when applied to humans. Should start with the literal meaning (animals with bright red rear ends) before zooming into the human equivalent for comedic effect. The "edgy" part suggests they want that uncanny valley vibe where something biologically natural becomes unsettlingly abnormal. User's phrasing ("hilarious informative") tells me they're expecting equal parts intelligence and absurdity here – not just jokes, but clever wordplay with factual grounding. They'd probably appreciate knowing the biological basis while laughing at how it could apply to humans. The example sentence needs that perfect balance of being grammatically correct (so it feels like a real phrase) yet so unnatural and bizarre it creates discomfort. Should avoid anything too violent or disturbing unless user explicitly asks for edgy, but this case