From the wikipedia article: "Mouthfeel is the great attraction of the toast sandwich. Given the diversity of textures and flavours of all kinds of bread, many

From the wikipedia article: "Mouthfeel is the great attraction of the toast sandwich. Given the diversity of textures and flavours of all kinds of bread, many variations can be easily devised and tested in order to enrich the experience of the consumer." In other words, it's a sandwich made out of bread- that is, a "hack" of the sandwich. Totally at home on HN :)