You put two long boards under each end and then use something as a large lever at the back end to walk it along the length on the boards. I moved an 8x12 wooden deck across the yard with one other person helping
I haven't heard it called that but I once watched two guys moving a huge safe on a couple of slender steel rods. It just rolled along as though it had wheels. Clever trick. (I guess that's the same sort of thing.)