Jodan Yonhon Nukite is a technique in Kyokushin karate. It translates to 'Upper-Level Four-Finger Strike.' This technique involves thrusting all four fingers together in a spearhand formation targeting the opponent's upper body or head. The term 'Jodan' refers to the upper level, 'Yonhon' indicates four fingers, and 'Nukite' refers to the thrusting motion. It is commonly used to attack vulnerable areas such as the eyes, throat, or collarbone with precision and force.