It brings to mind 'edamame' (young soybeans), often seen as a side dish with drinks or a snack in Japanese cuisine. It's suitable for expressing a casual, enjoyable time with friends.

These very peas were used in Mendel's experiments on the laws of heredity, which we learned about in science class. As such, it's more than just a simple vegetable; it's an important symbol that changed the history of genetics. It's also used to represent a strong bond, like that between friends or family.