the.com/smoking room

means A room set aside in homes and clubs specifically for smoking tobacco, so the rest of the house could stay clear of the smell and smoke.

from A straightforward compound of 'smoking' and 'room,' it rose with 19th-century manners: as tobacco use spread through parlors and gentlemen's clubs, hosts began designating a single room for pipes and cigars, sparing curtains, hair, and polite company from the fug. It became a fixture of men's clubs and ocean liners especially, often paired with leather chairs and hushed business talk — the room's reputation for cigars and deal-making outlasted the practical need that created it.