The term DECORATION CAKE BATHDAY can be summarized by the five letter word ICING. Icing is a type of sweet, creamy topping that is used to decorate cakes and other desserts. It is usually made from sugar, butter, and milk or cream, and can be flavored with extracts, spices, or liqueurs. Icing is often used to add color and texture to cakes for special occasions such as birthdays and weddings.