Do you have a specific food or drink that became insanely popular for seemingly no good reason ?
In Belgium, for exemple, we have the Carapils. It's probably one of our shittiest but also cheapest beer, to the point it became legendary.
Connoisseurs will tell you a cara is best drink at lukewarm temperature in front of the parking of your local supermarket.
It went so far that when "Colruyt", the group owning the Cara Pils brand, announced it would change its name the country almost rioted and forced them to keep the original name.
Do you have anything similar in your country ?
Obligatory tis cara trut for my fellow belgians