hopper
hop·per / ˈhäpər/ • n. 1. a container for a bulk material such as grain, rock, or trash, typically one that tapers downward and is able to discharge its contents at the bottom. ∎ chiefly hist. a tapering container, working with a hopping motion, through which grain passed into a mill. ∎ (in full hopper car) a railroad car able to discharge coal or other bulk material through its floor. ∎ a barge for carrying away mud or sediment from a dredging machine and discharging it. ∎ (also hopper head) a container at the top of a vertical pipe that receives water from a gutter or waste pipe. ∎ a box in which bills are put for consideration by a legislature. 2. a person or thing that hops. ∎ inf. a person who makes a series of short trips: an island hopper. ∎ a hopping insect, esp. a grasshopper.