The term "ví" refers to a type of traditional Icelandic drink made from fermented whey, a byproduct of cheese production. It is often enjoyed for its tangy flavor and is considered a healthy beverage due to its probiotic content. In Icelandic culture, ví is sometimes associated with local customs and celebrations. It is typically served chilled and can be found in various forms, including flavored versions that incorporate fruits or herbs, making it a versatile option for both locals and visitors.