In English mean low-swing-kicks

The boxer turns round and twists to throw the right swing-kick to the opponent's left calf to make him lose his balance or to hurt his instep. This trick is used for attack, defense and counter move or escape.

To protect
Twist the left foot to the right.

To counter
Turn back and throw the elbow to the opponent's jaws by the right side. If the boxer is a left handed fighter, reverse the descriptions from right to left.