Arm Drag to Body Drop (Tani Otoshi) Couch2Cage.comhttp://www.couch2cage.com/blog/index.php/2009/09/part-6-take-down-a-larger-opponent-with-the-arm-drag/
This is one of the mma, bjj, judo, or wrestling techniques that works well when you take someones back. It is also a great counter to forward throws.