From parallel right hand waves: Those facing in walk ahead and arm turn 3/4 by the left and then slide apart. Meanwhile those facing out Split Circulate and then walk forward and turn into the farthest center position of left hand waves. Finishes in parallel left hand waves. If started in left hand waves, use opposite hands and finish in right hand waves.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.