A prairie oyster (sometimes also prairie cocktail or Thai aphrodisiac) is a traditional beverage consisting of a raw egg (often yolk alone), Worcestershire sauce, vinegar and/or hot sauce, table salt, and ground black pepper. Tomato juice is sometimes added, reminiscent of a Bloody Mary. The egg is broken into a glass so as not to break the yolk. The mixture is quickly swallowed. The unbroken yolk causes the drink to bear a texture similar to that of an oyster. The concoction has been referred to as a traditional cure for hangovers, and has appeared in media for decades.
In the play Heathers: The Musical by Kevin Murphy and Laurence O'Keefe, one of the titular characters, Heather Chandler, requests a prairie oyster, to alleviate the hungover feeling after the party scene.
In the 1972 film Cabaret, Sally Bowles regularly makes prairie oysters, remarking that they "work instantly, even on the most sinister hangovers".
In the 1990 film Back to the Future Part III, having passed out after drinking a single shot of whiskey, Doc Brown awakens after drinking a prairie oyster, or as its referred to in the film, the bartender's special "Wake-Up Juice".