From parallel two faced lines: Centers arm turn 3/4 as the ends Circulate half. Ends of the six person line do a Partner Trade as the centers Trade (arm turn half). The line of six does a Bend the Line. Two lonesome dancers Circulate half (to the end of a line on their side of the set) and do a U-turn back. Finishes with facing lines of four.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.