Dindim is also how people call those ice-cream-like things inside a plastic bag. At least that's the first thing that came to my mind when I read the article. Really don't know if it exists or has a name in other parts of the world, but in Brazil I've also heard "geladinho", "cremosinho", "sacolé" and probably many other names. But to me, it's always gonna be "dindim".