speakeasy

Etymology
Deverbal from  (= speak quietly [interj.]); for the history, see Wikipedia at speakeasy § Etymology.

Noun

 * 1)  An illegal saloon or tavern, especially one operated during the American Prohibition period in the 1920s.

Usage notes
Connotations of a classy establishment—some required coat and tie—compared with a more downmarket or.

Translations

 * Bulgarian: контрабандна кръчма
 * Chinese:
 * Mandarin: 美國非法地下酒吧
 * Danish:
 * Finnish:
 * Japanese: スピークイージー
 * Swedish: