アームロック

noun

arm lock; armlock

A grappling hold in martial arts or combat sports that hyperextends or twists the opponent's arm to control or submit them.

• 柔じゅう術じゅつの試し合あいで、彼かれはアームロックを決きめて相あい手てをタップさせた。

  In the jiu-jitsu match, he applied an arm lock and made his opponent tap out.