Sometimes it can mean a "very small amount" or "something trivial." Just as the English expression "for peanuts" means "for a very low price," the emoji can be used with a similar nuance.

Peanuts are a beloved snack worldwide, but caution is needed as they can cause severe allergies. Therefore, this emoji also plays an important role when checking food ingredients or warning about allergies. It also brings to mind the characters from the popular comic strip 'Peanuts.'