 For those not familiar with kickboxing, Muay Thai or even boxing, the clinch is a technique where one fighter grabs the other fighter to immobilize them.Sometimes it is used to set up a knee strike (mostly used in Muay Thai and kickboxing) other times the clinch is used when a fighter is tired, or stunned from a punch and they clinch with their opponent so that fighter cannot strike them again.Not only is it a technique but it can be VERY important strategy wise.