(formal) first-person singular pronoun: I, me

personal, private / secret

a personal or private matter / selfishness / privacy, secrecy / (women's speech, obsolete) a brother-in-law

Alternative spelling of 私達 (“we; us”)

private; mine

(idiomatic) to take on a fight; lit. to buy a fight

buy on credit

stocking up

stock up

(slang) Of an adult, buying (chiefly childish) things in great amounts (due to newfound purchasing power).