Tobi Ushiro Geri is a technique in Kyokushin karate. It translates to 'Jumping Back Kick.' This technique involves jumping backward and executing a kick with the rear leg targeting the opponent's body or head. The term 'Tobi' refers to jumping, 'Ushiro' indicates backward, and 'Geri' denotes the kick. It is commonly used to create distance from the opponent while delivering a surprise attack or counterattack with significant force.