No, Demeter Fragrance Library’s zombie cologne doesn’t smell like the rotting flesh of undead humans. It’s actually stated as smelling like a forest floor (dried leaves, mushrooms, mildew, moss and earth). the ‘for her’ variant offers a scent that’s slightly lighter with a “…a touch of Dregs from the bottom of the wine barrel for that feminine touch.”
http://www.demeterfragrance.com/757765/products/Zombie-for-Him.html
http://www.demeterfragrance.com/757766/products/Zombie-for-Her.html