stuff — the material of which anything is made: a hard, crystalline stuff.
wolf — any of several large carnivorous mammals of the genus Canis, of the dog family Canidae, especially C. lupus, usually hunting in packs, formerly common throughout the Northern Hemisphere but now chiefly restricted to the more unpopulated parts of its range.
pig out — a young swine of either sex, especially a domestic hog, Sus scrofa, weighing less than 120 pounds (220 kg)