From column formation: End pair do a U-turn back (turning away from each other) and spread. Lead center dancer moves up between outsides and does a "circulate" (like a Trade with another phantom center). Trailing center dancer moves forward to the center position directly ahead. Finishes in parallel waves. (See Anything to a Line.)
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.
