goody-goody I. \| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷\adjective Etymology: reduplication of goody (III) : sentimentally, affectedly, or unctuously good < a goody-goody boy — Havelock Ellis > II. noun : a person who is goody-goody < her … generous nature had nothing in it of the goody-goody — Van Wyck Brooks >