A milkshake is a sweet, cold drink made with ice cream. If you want a dessert you can slurp through a straw, you should consider a milkshake.
Milkshakes are traditionally made with ice cream, milk, and flavored syrups like chocolate or strawberry, although there are infinite variations. You might prefer frozen yogurt or non-dairy ice cream, or an extra-thick milkshake made without milk. In New England, this sweet treat is often called a "frappe," although if it's coffee-flavored and you're in Rhode Island, it's a "coffee cabinet." Milkshake was first used in the 1880s, when it referred to an adult beverage made with whiskey.