YULE QUAFF is a term used to refer to the traditional holiday drink of eggnog. NOG is a three-letter abbreviation for eggnog, and EGGNOG is a six-letter word for the same drink. Eggnog is a popular holiday beverage made with milk, cream, sugar, and eggs, and often flavored with spices such as nutmeg or cinnamon. It is usually served cold and is often associated with Christmas and other winter holidays.