pounder (Noun) — (used only in combination) something weighing a given number of pounds. ex. "the fisherman caught a 10-pounder" ex. "their linemen are all 300-pounders"
pounder (Noun) — A heavy tool of stone or iron (usually with a flat base and a handle) that is used to grind and mix material (as grain or drugs or pigments) against a slab of stone.