Oì tsuki Oì Tsuki is the most common and use punch of all the karate techniques. The reason is because it is easy to do and effective at the same time. Tsuki always refers to straight punches and oì tsuki is divided into yodan, chudan and gedan depending on the direction of the technique. Hikite is essential in this move and it means the pullback action of the arm you don't use to attack, it is used as a way to increase strength and speed of the punch. Also you have to keep in mind the importance of all your body to get the perfect move like the hip or the wrist. You have to twist both of them.