(Internet slang) dirty room

(offensive, Internet slang) Alternative form of 子供部屋おじさん

(offensive, Internet slang) a man whose age is greater than about thirty or forty who lives in one's child room and with one's parent(s).

single room

double room

(formal) [I, we] wish you a happy new year (literally meet a good year)

excuse me; may I come in?