Flophouse

Noun

 * 1) A cheap hotel or boarding house where many people sleep in large rooms.

Thesaurus
boardinghouse, dorm, dormitory, doss house, fleabag, guest house, hospice, hostel, hostelry, hotel, inn, lodging house, ordinary, pension, posada, pub, public, public house, roadhouse, rooming house, tavern

Alternative forms

 * flop house