From double pass thru formation: Center four will Square Thru and step out of the center. Trailing couples will now Square Thru to stand behind the others. Finishes in completed double pass thru formation. Same rule for Half Square Off. On 3/4 Square Off, do the Square Thru 3/4 then Pass Thru so the new centers can do the 3/4 Square Thru.
Mac Parker 1964
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.
