Lewis & Short

gurgustĭum, ii, n. [kindred with gurgulio, perh. with reference to its straitness], a small, mean dwelling, a hovel, hut: nescio quo e gurgustio te prodire, Cic. Pis. 6, 13: in gurgustio habitare, id. N. D. 1, 9, 22: modicum, Suet. Gramm. 11; Ambros. de Bono Mort. 1, 5 al.