From eight chain thru formation: All give a right and pull by. Those facing out courtesy turn and Roll (i.e., those facing out have done a Right and Left Roll) then circulate two positions. New centers Left Swing Thru and then arm turn 3/4. Finishes in parallel 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.