Jut Sau
窒手
Literally: stopping hand
Jut sau, the stopping hand, is a short, jerking wing chun deflection in which the wrist snaps the opponent's arm back and down.
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Katas containing this technique
About
Jut sau, literally the stopping hand, is a short, sharp deflecting technique in wing chun against straight punches. It is performed with a jerking motion, and the wrist alone does the blocking: it snaps back and down, sending the opponent's contact arm away instead of letting it continue forward. The eWingChun glossary describes it as a jerking block touching the opponent with the thumb side of the wrist. It differs from pak sau, the slapping palm block, in touching the opponent with the wrist, not the palm. In the Wikibooks breakdown of the Siu Nim Tau form, jut sau follows straight after huen sau: the hand returns along the centre line to about a fist's distance from the chest. In a fighting-focused approach, the short jut sau also presses the opponent's elbow down, collapses his stance, and pulls his torso forward as preparation for a head-and-arm control.