You know what a milkshake is, right? Ice cream, a splash of milk, perhaps some flavored syrup or malt (if you want to get extra special), all blended together with a powerful whirring disk until smooth and creamy. That's what you think a milkshake is, but you're wrong. As any true New Englander can tell you, what you got there ain't a milkshake. It's a frappe, plain and simple.