Haisoku Jodan Uchi Mawashi Geri is a technique in Kyokushin karate. It translates to 'Instep Upper-Level Roundhouse Kick.' This technique involves executing a roundhouse kick with the instep targeting the opponent's upper body or head. The term 'Haisoku' refers to the instep, 'Jodan' indicates the upper level, 'Uchi' refers to the striking motion, and 'Mawashi Geri' denotes the roundhouse kick. It is commonly used to deliver powerful and versatile strikes to the opponent's face, jawline, or temple.