a wrestling hold in which the opponent's head is locked between the crook of your elbow and the side of your body
headlock详细解释
head.lock n.Sports （名词）【体育运动】 A wrestling hold in which the head of one wrestler is encircled and locked by the arm and body of the other.勒头：摔跤的一种握法，一位摔跤手的头被另一个摔跤手的胳膊和身体圈住并锁紧
