In Thai, this technique is called (Reuu See Boht Yaa = ฤาษีบดยา). The elbow skull crusher is a powerful vertical muay boran elbow strike to the top of the opponent's head. Step on the opponent's font leg and then on his shoulder while keeping your guard up. Strike with one elbow and let yourself fall at the same time. Keep your hands up. Visit www.flashmavi.com for full instructions..