狐狸尾巴 húliwěiba to reveal one's true colors Definitions Defs Origin Strokes Stroke Words Sentences Sents 狐狸 húli noun fox fox; common name for several species of small to medium-sized canine mammals尾巴 wěiba noun tail 1. The protruding part at the back of an animal's body; also used for the back or end part of an object. 2. A person who follows someone else in order to keep them under surveillance.