(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

to be careful about ~

be careful, watch out / take care

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

one who sets fire / (by extension) one responsible for something's popularity, etc.

to soak / to dip

to nitpick; to find fault in unimportant details