From a completed double pass thru formation: Lead dancers only do a full Cloverleaf and Pass Thru. Trailing dancers do about 3/4 of a Cloverleaf to face the trailing dancer from the other side and Pass Thru. Finishes in one of the T-Bone formations.
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.