In English mean to plant the elbows

These elbow tricks used when the opponent lose his balance and steps in. If the opponent steps in to the right: strike the right elbow to his back. If the opponent steps in to the left: strikes the left elbow to his back. If he steps in the front: strikes the both of elbows or one of them to the opponent's back or you may also throw the knee to the opponent' chin.

To protect
Hold on to both fists to cover your neck and both elbow to cover the chest.

To counter
If you're got the gap or the occasion to escape turn back and throw the left or the right elbow to the opponent's chest.