The following description exists for REFERENCE. It is NOT intended as INSTRUCTIONAL.

With the Defender on their back, the Attacker gets their own leg around the Defender's head, then uses their weight and leg strength to crush the Defender's head between the Attacker's thigh and lower leg.



The Defender's limbs are free to effect an escape though the thigh lock is highly effective since it immobilizes the head and leaves the Defender unable to see how to attack the Attacker.