From parallel waves: Those facing in step forward and Cast 3/4. Those facing out Quarter Right and single file Promenade a quarter (as in Checkmate) to face in. Finishes with outside couples facing in and center couples in a box formation. (Ron Shaw 1975)
From parallel waves: Ends Circulate twice and face in; centers Slither (nose to nose sashay), arm turn 3/4 and step ahead (Extend) to join the circulators and form right hand or left hand waves. (Could perform this move from parallel two faced lines also. (Claude Spheres 1975)
Ron Shaw and Claude Spheres 1975
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.