From a completed double pass thru formation: Leads Crosstrail and move around the outside to Star Thru with the ones they meet and step into the center. Trailers Crosstrail and move around the outside to Star Thru with the ones they meet and end behind the lead people. Finishes in double pass thru formation.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.