From facing couples: Left arm turn opposite half then the centers right arm turn 3/4 and the ends move up a quarter to form a left hand wave.
Note: From a starting left hand wave, the term "Left" is not necessary, since Spin the Top means Ends half arm turn by whichever arm is joined and then the new centers arm turn 3/4 by whichever arm is joined.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.
