A Taekwondo kick finds its way into Glory. Back in the 1990's we used to call this a 'cut back kick' in Olympic style TKD. It's a skip side kick off the front leg and before you put the front leg down you throw the back kick. You can also do it as a spin kick (wheel kick) defensively where you block your opponent's kick with the front leg side kick and then counter with the back or spin kick. I think Anthony Pettis through this in the UFC once but he landed to the body so there was no KO.