From a line of four: Right end of the line crosses over to the other end of the line to reverse facing direction as the other three face toward the vacated end, take one step forward than turn another quarter int he same turning direction. Finishes in a line of four facing opposite to original direction.
Ralph Pavlik 1968
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.