There are some amusing answers here, but, my earlier posting was not speculation-this is what I was told by the distributor of binding posts. He loved to test people on this because few actually know. I got four right—bare wire, spade lug, banana jack and pin jack—but I did not guess double banana (or dual banana) jack. I like the alligator clip idea. Perhaps someone can claim their product is a six-way binding post, or even more. At least this would have some basis in fact, unlike the cell phone companies claiming “10 k” coverage (10 is bigger than 5, right? Never mind that 5k denoted the generation of development).