Single Whip (Chinese: 單鞭; pinyin: dān biān) is a common posture found in most forms of tai chi.
Notable exceptions are the Single Whip forms found in Sun-style and Wu (Hao)-style, which finish with both hands open and palms outward.
Single Whip is one of the movements/postures most repeated in the solo training forms, such as tai chi.
[1] Its first appearance in most forms follows the Grasp Sparrow's Tail sequence (peng, lu, ji, an) and is seen later in Snake Creeps Down.
[2][3] There is also a posture in the Wu style sword form called Single Whip Fusing Throat.