From Longman Dictionary of Contemporary Englisheggnogegg‧nog /ˈeɡnɒɡ $ -nɑːɡ/ noun [uncountable] a drink made from eggs, sugar, milk, and alcohol, drunk at Christmas
Examples from the Corpus
eggnog• Music is as much a holiday tradition as mistletoe and eggnog.• Instant scrambled eggs, frozen fried eggs, canned eggnog, and many other convenient egg foods are being market tested.Origin eggnog (1800-1900) egg + nog “strong beer” ((17-20 centuries)) 