Chusoku Chudan Mawashi Geri is a technique in Kyokushin karate. It translates to 'Ball of Foot Mid-Level Roundhouse Kick.' This technique involves executing a roundhouse kick with the ball of the foot to target the opponent's midsection or torso. The term 'Chusoku' refers to the ball of the foot, 'Chudan' indicates the mid-level, 'Mawashi' means roundhouse, and 'Geri' refers to the kick. It is commonly used to strike the opponent's abdomen or ribs with speed and precision.