Сленг: нательное бельё (from adjective "cruddy" (encrusted with dirt)), нижнее бельё (from adjective "cruddy" (encrusted with dirt)), белье (from adjective "cruddy" (encrusted with dirt)), исподнее (from adjective "cruddy" (encrusted with dirt)), трусы (from adjective "cruddy" (encrusted with dirt)), кальсоны (from adjective "cruddy" (encrusted with dirt))
Универсальный англо-русский словарь. Академик.ру. 2011.