What is the definition of Sellers Macabre?

"'Sellers macabre' is a delightfully grim term, a play on the word 'ellers' and 'acabre,' meaning it's all about those ghoulish, sales-y things that make you cringe like a cat at a funeral. Picture this: "The souvenir shop owner, with a twinkle in his eye and a stack of 'ellers macabre' dolls, begged for more at the thrift store's annual 'Grim Reapers' gala."

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Here's a bit edgier: "The creepy antique shop owner, convinced his 'ellers macabre' were the key to unlocking lost souls, insisted on buying a cursed doll for his dying client – 'Oh, darling, this'll make your late-night giggles sound like a banshee's dirge.'"