A milk shake is a sweet cold beverage usually made from milk 
I love milk shakes so much. I really like to dip my fries in them. What's your favorite flavor?
Chocolate and butterscotch 
I've never had a butterscotch milkshake before. What else do you need to make one?
milk; the term for a coffee ice cream (or coffee syrup) and milk-based beverage has the name "coffee cabinet" in Rhode Island. The term shake may be used more generally to refer to "any" cold beverage involving milk. Many food places such as McDonald's avoid the term "milkshake" on their menus in favor of the term "shake".
Full-service restaurants, soda fountains, and diners usually prepare and mix the shake "by hand" from scoops of ice cream
Milkshake
A milkshake is a sweet, cold beverage that is usually made from milk, ice cream, and/or ice milk, and sometimes flavorings or sweeteners such as butterscotch, caramel sauce, chocolate syrup, or fruit syrup.
Many more precise and rigid definitions are used, subject to region. Outside of the United States, a milkshake that uses ice cream or ice milk is sometimes called a thick milkshake or thick shake; in New England, the term frappe may be used to differentiate it from thinner forms of flavored