點睛之筆 [ㄉㄧㄢˇ ㄐㄧㄥ ㄓ ㄅㄧˇ; dian3 jing1 zhi1 bi3] the brush stroke that dots in the eyes (idiom); fig. to add the vital finishing touch the crucial point that brings the subject to life a few words to clinch the point ◄ ►