In English mean beats alternately with both elbows

The boxer throws both of the elbows, left and right alternately the same as the trick in SOK FAN NAH (SOK FUN NA: strikes the front elbow) then steps the right foot towards the opponent, if he escapes by stepping back follow him by throwing the left elbow by turning the body back and strike the opponent's chain or the left ribs. This trick is used for attack defense or escape.

To protect
Throw the knee to the opponent's rib. If the boxer is a left handed fighter reverse the descriptions from right to left.