- You may also be looking for the card game, gin rummy.
Gin was an alcoholic beverage distilled from grains on Earth. Places where it was served, such as the Bourbon Street Bar, were sometimes referred to as a "gin joint". (TNG: "11001001")
Gin was the chief ingredient in a martini, along with vermouth. (TOS: "The Cage", "The Menagerie, Part I")
A Klingon martini was a cocktail created by mixing vermouth, gin and Klingon bloodwine. (VOY: "In the Flesh")
Tom Paris requested a gin and tonic at the Kadi reception on board USS Voyager. (VOY: "Someone to Watch Over Me")