A person so believing of what you tell them, the size of their gullibility equals that of a Dinosaur.
Whitney believed me when I told her George W. Bush is my butler, what a gullisaur!
A small dish of dessert food taken before the main dessert course, to stimulate one's “desserting” appetite. A dessert appetizer.
...yes I would like to see the Dappetizer menu before dessert.