From facing couples: Girls Cross And Spin -- girls cross over (passing inside shoulders--i.e., left shoulders) to arm turn the boy 3/4 and form a wave. Boys Cross And Spin -- boys cross over (passing right shoulders) to arm turn the girl 3/4 and form a left hand wave.
Jack Lasry and Allen Tipton 1967
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.