Anyone who’s seen a Hollywood movie will know of the legendary red cups known as Red Solo cups in the US. They’re those red cups that teenagers and college students drink certain beverages out of. They come with ridges that are supposed to tell you how much to fill the cup with, but everyone ignores them.
In the Netherlands, as well as many other parts of the globe, Red Solo cups have a completely different name: American Cups. One can certainly see why: they were popularized by American films, thus, people began referring to them as American cups. Not very creative, but the name certainly makes sense.