This glossary of early twentieth century slang in the United States is an alphabetical collection of colloquial expressions and their idiomatic meaning from the 1900s to the 1930s. This compilation highlights American slang from the 1920s and does not include foreign phrases. The glossary includes dated entries connected to bootlegging, criminal activities, drug usage, filmmaking, firearms, ethnic slurs, prison slang, sexuality, women's physical features, and sports metaphors. Some expressions are deemed inappropriate and offensive in today's context.