A black hole was a variety of alcoholic cocktail beverage that was named after the black hole astronomical phenomena. This drink was available on the menu at Quark's on Deep Space 9's Promenade. (ST reference: Star Trek Cookbook, DS9 episodes: "Bar Association", "Hard Time", "Ties of Blood and Water")

Jadzia Dax was introduced to black holes by a bartender she met in the 2270s. She enjoyed drinking black holes at breakfast. (DS9 episodes: "The Circle", "Playing God")

Prior to serving the beverage in his establishment, Quark was first taught to mix a black hole by Stumpy Strope. (DS9 reference: Legends of the Ferengi)