flophouse

Etymology
From, originally hobo slang, presumably from slang.

Noun

 * 1)  A cheap hotel or boarding house where many people sleep in large rooms.
 * 2) * 1904, McClure’s Magazine, November 1904:
 * In one of [Cincinnati’s] slum districts stands the Silver Moon, a “flop house” (i.e., a house where the occupants are “flopped” out of their hanging bunks by letting down the ropes).

Verb

 * 1) To stay in a flophouse.