Ushiro Mawashi Tobi Geri is a technique in Kyokushin karate. It translates to 'Jumping Spinning Back Kick.' This advanced technique involves jumping and rotating the body to execute a powerful spinning kick (mawashi geri) directed towards the rear (ushiro) of the practitioner. The term 'Tobi' indicates a jumping motion. It requires exceptional timing, balance, and coordination, and is often used as a surprise attack or to counter opponents from behind.