This is a sandwich, which is made of upper and lower white square packets or light brown wheat bread slices, usually with "lettuce", "tomato", "ham" and "cheese" between them. This classic fast food is popular in western countries because it is easy to eat.
Sandwiches depicted on different platforms have different shapes, some are squares, some are triangles, and they are cut. Facebook also depicted two toothpicks on the sandwich. This emoji is often used to represent sandwiches, light meals, fast food and fast food culture, and sometimes it can also be used to represent lunch and afternoon tea.
