1842  Having killed .. . all they see within a short distance, they skin . . . them with a broad clasp-knife, called a sculping knife.
1883  Instantly the sculping-knife is at work, the skin with the fat adhering is detached with amazing rapidity from the carcase which is left on the ice still quivering with life, while the fat and skin alone are carried off.
1956  From the seal-fishery we get such words as: . . . sculp . . . to which we add sculping knife . . .