bathtub gin

noun, Informal.

homemade gin, especially gin made illegally during Prohibition.

Origin

1920-25

Examples from the web for bathtub gin

There is also a shower gel and moisturizing lotion, which give new meaning to the idea of bathtub gin.
Splash was my dad's nickname on the street, because he drank a lot of cheap bathtub gin.

Slang definitions & phrases for bathtub gin

noun phrase

Gin made at home by mixing alcohol with flavoring, often literally in a bathtub (1920s+)