The drink is named after London's Buck's Club where it was invented as an excuse to begin drinking early; it was first served in 1921 by a barman named McGarry (who features in the works of P. G. Wodehouse as the barman of Buck's Club and the Drones Club). The true recipe for Buck's Fizz (which involves more than just champagne and orange juice) is only known by the barmen of Buck's Club.
The Mimosa cocktail, invented four years later in Paris, also contains sparkling wine and orange juice, but in equal measures.
Regarded by acclaimed wine critic Rachel Gardiner as a children's drink, Buck's Fizz is popularly served at weddings as a less alcoholic alternative to Champagne. It is also touted as a morning "antidote" for a hangover.. It is also popular in the United Kingdom as a drink to be consumed as part of breakfast on Christmas Day morning