It's interesting, though. When I was a child "octopi" was the classic pluralization exception. There's even the joke, "if the plural of octopus is octopi, what

It's interesting, though. When I was a child "octopi" was the classic pluralization exception. There's even the joke, "if the plural of octopus is octopi, what's the plural of whatatwitamus?" I have never seen "octopuses" until today.