wag uk /wæɡ/ us /wæɡ/ -gg- (especially of a tail or finger) to move from side to side or up and down, especially quickly and repeatedly, or to cause this to happen （使）（尤指尾巴或手指）摆动，摇 例句： The little dog's tail wagged in delight. 那条小狗欢快地摇着尾巴。 He wagged his finger sternly at the two boys. 他一脸严肃地向那两个男孩晃了晃手指。