お利口さん おりこうさん Also written お利巧さん Meanings Noun well-behaved child; obedient child; good child Kanji 利 benefit 口 mouth. Read as コウ. Example sentences どこかのお利口さんが一晩中ミルクを冷蔵庫から出しっぱなしにしておいたな。Some wise guy left the milk out of the refrigerator all night. お前はお利口さんだよ。You're a goody-goody. お利口さんね。You're a good boy. メアリーって、ほんとお利口さんだよね?Mary is really clever, isn't she? 私って、お利口さんだって思ってたのに。I thought I was being clever. Jinuma: Japanese Dictionary · Word lists