Single whip
Single Whip (單鞭 dān biān) is a common posture found in most forms of t'ai chi ch'uan. Typically at the end of the posture the left hand is in a palm outward push and the right hand held most commonly in the form of a hook or closed fist. Notable exceptions are the Single Whip in Sun-style and Wu/Hao style t'ai chi ch'uan which finish with both hands open, palms outward.
Single Whip is one of the movements/postures most repeated in the solo training forms. Its first appearance in most forms follows the Grasp Sparrow's Tail sequence (peng, lu, ji, an) and is seen later as a variant renamed Snake Creeps Down. There is also a posture in the Wu style sword form called Single Whip Fusing Throat.
The martial applications of Single Whip are many.[1] There are various strikes, throws, changeups (using one hand to create an opening so that the other can strike) and kicks derived from this posture trained by different schools.