Rocktopus

Rocktopus: noun. A rock guitarist who plays so fast that to the audience he appears to have eight hands. In old English, however, a rocktopus was more often than not an octopus who liked to wear rocks as a fashionable accessory. With the increase in popularity of rock-stars and the decline of octopus fashion sense, the older meaning completely gave way to the new one and the only people who will still call octopi with rocks on their heads rocktopi are pompous old men wearing monocles.