rumpus room

(US dated 旧) room in a private house (often in the basement) used esp for games, parties, etc; recreation room （私人住宅的）游艺室（常设於地下室）; 娱乐室.

rum, rumba, rumble, rumbling, rumbustious, ruminant, ruminate, rumination, ruminative, ruminatively, rummage, rummage sale, rummy, rumor, rumour, rumour (US rumor), rumoured (US rumored), rump, rumple, rumpus, run, run (sth) down, run (sth) off, run across, run across (into) sb.(sth.), run after, run after sb, run along, run at sb, run away (from sb/...), run away with, run down, run for, run into, run into sb, run off, run on, run one's eyes over, run out, run out at,