From a wrong way thar: All swing half by the right, centers star left 3/4 as outsides turn back (turning inward). Outside people slide in front of the third person coming toward them in the star and all form an eight hand left hand star. Turn this star halfway. Those who slid into the star make a left face turn halfway as the others step to the outside. Finishes in a thar. If started from a regular thar formation, opposite hands are used and the move finishes in a wrong way thar.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.