(noun) dunghill / (noun) a refuse heap / (noun) kitchen midden / (noun) a small pile (as of seeds, bones, or leaves) gathered by a rodent (as a pack rat) / (noun) a refuse heap / (noun) a mound marking the site of a primitive human habitation
Empty coffee cups, beer cans, underwear on the floor—I was creating a teenage midden, fouling my adult nest.