Disco fries
From Freepedia
Disco fries, is a dish made up of french fries covered in brown gravy, on top of which cheese is melted. Although American cheese is most prevalent, cheddar and mozzarella are sometimes used. Disco fries are available almost exclusively at diners in the northeast United States, most notably New Jersey. The dish is similar to Canadian poutine.
Many diners do not list disco fries on their menu, though it is often available upon request. Some establishments use marinara sauce instead of gravy, similar to Italian poutine, but this is relatively rare.
The relationship to disco is obscure. Probably, the food was considered a common or ideal dish to eat after a night out at a discotheque (also called simply a disco), drinking alcohol and dancing. Being available in diners, it would be available in the early morning hours when the discos close, and some drinkers crave fatty, protein-rich food after a night of drinking. Such food is also sometimes touted as a hangover remedy..
