unable to put into words

coming to a mutual understanding

use one thing for many purposes / work someone hard

to use one's head

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

a Japanese word of ancient Japanese origin (as opposed to a word borrowed from Chinese, or composed in Japan from Chinese-derived roots) / Japanese songs or poetry (such as tanka)

male language, men's words