The Cursed Stuffing is a consumable item used to summon the Turkor the Ungrateful boss. It has a 14.29% (1 in 7) chance of dropping from harpies during the Thanksgiving season (November 1–30).
To summon Turkor the Ungrateful, the player must first summon the Pet Turkey with the Turkey Feather, then use the Cursed Stuffing. The summoning will despawn the Turkey pet, and will consume the Turkey Feather in the player's inventory. Turkor the Ungrateful can only be summoned during the Thanksgiving season.
Tips: The easiest way to obtain Cursed Stuffing is by building and using a Statue trap during Thanksgiving [verification needed].