dumping-ground

America long remained a dumping-ground for nearly all the nations of the world having an excess of population.

This country must not be made the dumping-ground for foreign vagabondism.

A “dump” or “dumping-ground” is thus the place where such waste material is deposited.

Frost was the agent, ice was his delver, water his carrier, and the basin of Lake Ontario his dumping-ground.