The term 'picnic drink' can refer to a variety of beverages that are often served at outdoor gatherings. The most common picnic drinks include LEMONADE (8 letters), SODA (4 letters), ADE (3 letters), and sodapop (7 letters). LEMONADE is a sweetened beverage made from lemon juice, water, and sugar. SODA is a carbonated beverage that comes in a variety of flavors. ADE is a type of sweetened beverage that is usually made with fruit juice or syrup. Sodapop is a type of SODA that is flavored with fruit syrup. All of these drinks are popular choices for picnics and other outdoor events.