頭の黒いネズミ あたまのくろいネズミ Also written あたまのくろいねずみ, 頭の黒い鼠, 頭の黒いねずみ Meanings Expression, Noun person who steals money from the workplace; embezzler; untrustworthy person Kanji 頭 head. Read as あたま. 黒 black. Read as くろい. Jinuma: Japanese Dictionary · Word lists