Why is speakeasy also known as blind pig?

The term "speakeasy" is often associated with the Prohibition era in the United States, where illicit bars operated secretly. The name "blind pig" refers to a similar concept, where patrons would pay to see an attraction (like a "blind" animal) but were actually served alcohol instead. Both terms reflect the covert nature of these establishments, as they operated outside the law while providing a social gathering space.