(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

Synonym of 黄昏 (tasogare, “dusk; twilight”) / Synonym of 黄昏時 (tasogaredoki, “dusk; twilight”)

lower teeth

(rare) lower teeth

lower lip

lower lip

(medical terminology) armpit, underarm

afternoon, especially the early afternoon / (by extension) over the hill, past middle age