Set two boxes on top of each other at 40-48″. Set a sandbag next to you, with the box on the opposite side. Lift the sandbag across your body to the ledge of the box, and return it to the ground.
3x Keg Lifts means 3x reps facing one direction (moving sandbag from right to left), then turn around and complete 3x more (moving sandbag from left to right).