“Milkshake” or “Frappe”? Believe It or Not, There Is a Difference

Are you the kind of person to argue the most miniscule points until you prove that you’re right? I sure am! Which is why I’m wondering how many people actually believe in the difference between a milkshake and a frappe. To be precise, a milkshake is a blended “drink” using only milk and flavored syrup. It becomes a frappe when you add the ice cream. Is this just a regional thing? Are they actually the same thing? Where is the lie?