Hook Kick
From FightWiki
The hook kick strikes with the heel from the side. It is executed similar to a side kick. However, the kick is intentionally aimed slightly off target in the direction of the kicking foot's toes. At full extension, the knee is bent and the foot snapped to the side, impacting the target with the heel. Practitioners of jeet kune do frequently use the term heel hook kick or sweep kick. It is known as Gancho in capoeira.
The kick can be seen used by Bruce Lee in all of its flashiness in Fists of Fury (The Chinese Connection in America). Lee also used the move in Enter the Dragon, where he used it several times to knock out opponents. Bill Wallace was also a great user of this kick, as seen in his fight with Bill Briggs, where he KO'd his opponent with the clocked 60mph kick.
