The term "skinny pirate" is often used to describe a rum and cola drink that is made with diet cola instead of regular cola. This term has become more popular in recent years as people have become more health-conscious and are looking for ways to enjoy their favorite drinks without consuming too many calories. Some other synonyms for the term "skinny pirate" include the "skinny rum and coke", the "light rum and cola", and the "diet rum and coke". No matter what you call it, this drink is a great way to indulge in your favorite rum and cola while still maintaining a healthy lifestyle.