chocolate milk /ˌt͡ʃɑklɪtˈmɪɫk/ noun1 •A sweetened cocoa-flavored drink, typically created by mixing chocolate syrup or chocolate powder with milk, and typically served cold.Historically, it would appear that the Certain-Thyson Milk Company of Miami, Florida, began the manufacture and distribution of chocolate milk in bottles during the late fall of 1919. — 1940 formschocolate milks