ˈgoody-ˌgoody noun (plural goody-goodies) (also goody-two-shoes American English) [countableC]
GOOD/MORALsomeone who tries hard to be very good and helpful in order to please their parents, teachers etc – used especially by children to show disapproval 善于讨好卖乖的孩子,乖乖儿〔指尽量表现得好以取悦父母、老师等的人;尤为儿语,含贬义〕