also: ダンプ・カー
A wasei-eigo term derived from English 'dump car'; refers to a truck with a tilting bed for carrying and dumping loose materials.
wasei-eigo (Japanese-coined English), from dump car
A dump truck is carrying earth and sand at the construction site.
They hauled earth and sand to the construction site by dump truck.
The dump truck unloaded the gravel right there.