The term COMMON COOKIE is represented by two crossword solutions, DADS and OREO. DADS is a type of cookie that is made with oats, flour, butter, sugar, and other ingredients. It is a popular cookie in the United States and is often served with milk or coffee. OREO is a brand of cookie that is made with two chocolate wafers filled with a creme center. It is one of the most popular cookies in the world and is available in many different flavors. Both DADS and OREO are examples of common cookies.