From a Tidal Wave: Two end dancers Trade (with each other) and then Star Thru with the end dancers in the six hand wave. Center four Spin the Top and Step Thru. Finishes in eight chain thru formation.
NOTE: A different meaning for "Shuffle".
Pete Enea 1968
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.