From lines, waves or two faced lines: Half Tag the Line then all arm turn 3/4, step thru and walk forward into completed double pass thru formation (i.e., "Complete Your Tag" after the arm turn) to take the next call (In, Out, Right, Left or Zig Zag).
Chuck Peel 1972
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.