pounder

(noun) (used only in combination) something weighing a given number of pounds. Examples: "The fisherman caught a 10-pounder." "Their linemen are all 300-pounders."

(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. Synonyms: pestle, muller.