The term 'Wiggly Dessert' is a reference to a type of dessert that is made with jello or GELATIN. Jello is a brand of flavored, sweetened, and colored GELATIN-based dessert, which is usually served in a molded form. GELATIN is a colorless and flavorless food ingredient derived from collagen, which is used to thicken and stabilize foods such as jello. Both jello and GELATIN are popular ingredients in desserts, and can be used to make a variety of wiggly desserts.