stuff (st”f) n.
1. The material out of which something is made or formed; substance.
2. The essential substance or elements; essence.
3. Informal. a. Unspecified material. b. Household or personal articles considered as a group. c. Worthless objects.
4. Slang. Specific talk or actions.
5. Sports. a. The control a player has over a ball, especially to give it spin, english, curve, or speed. b. The spin, english, curve, or speed imparted to a ball.
6. Special capability.
7. Chiefly British. Woven material, especially woolens.
8. Slang. Money; cash.
9. Slang. A habit-forming drug, especially heroin.

-stuff v. stuffed, stuffing, stuffs.
-tr.
1.a. To pack tightly; cram. b. To block (a passage); plug.
2.a. To fill with an appropriate stuffing. b. To fill (an animal skin) to restore its natural form for mounting or display.
3. To cram with food.
4. To fill (the mind).
5. To put fraudulent votes into (a ballot box).
6. To apply a preservative and softening agent to (leather).
-intr.
To overeat; gorge.

-idioms.
stuff it. Vulgar Slang.
Used as an intensive to express extreme anger, frustration, or disgust.
stuff (one's) face. Slang.
To eat greedily. -stuffer n.