From a box formation between two outside couples facing in (the dancers in the box are facing at right angles to the facing direction of the outside couples): Actives (in the box) "Cloverleaf" behind the inactives and face in as couples while the inactives Pass Thru. Finishes in eight chain thru formation.
Jim Graham 1974
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.