Answer:
Speakeasies
Explanation:
During American dry law, in the 1920s and 1930s, the manufacture, marketing and consumption of alcoholic beverages was prohibited in the US. At that time, the bars selling these drinks were clandestine. They functioned hidden in basements, in the back of other establishments, or disguised as other activities.
These bars were called speakeasy, which means 'speak low'. No one could know that they existed except their customers. To enter often, you had to say a password. Only then were you allowed to enter.
