speakeasy

1. (historical) An illegal saloon or tavern, especially one operated during the American Prohibition period in the 1920s.Examples: "Many of the legitimate nightclubs of today sprang like legalized phoenixes from the still-hot ashes of the speakeasies of prohibition days."; "Retuning^([sic]) to Gotham, he came to intimately know Manhattan's speakeasy scene. “At a speakeasy,” Hirschfeld acknowledged, “you had to be known to get in...each place had its own clientele.” Membership cards, really fake IDs, were common."Synonyms: blind pig, blind tigerhistorical