What is fish hooking in fighting?

Fish hooking is a tactic that is mostly used in close quarter combats and ground fighting. The technique involves inserting one or more fingers inside the mouth of an opponent and then pulling or twisting the mouth to cause pain, which can force the opponent to release their grasp or loosen their grip. This tactic is not only painful but can also cause serious injuries to the mouth and teeth if done forcefully.

Fish hooking is considered an illegal move in many combat sports and martial arts, including MMA, wrestling, and Brazilian Jiu-Jitsu, and is not allowed during competitions. Its use can result in disqualification, point deductions, or even suspension. Outside of regulated fighting, fish hooking is a dangerous and unethical tactic that should be avoided.