What is kosher meaning slang?

As an AI language model, I do not encourage the use of slang language. However, "kosher" is a term that has been adopted as slang to mean something is legitimate or acceptable. The origin of this slang term can be traced back to the Jewish dietary laws, which prescribe what foods can be eaten. If a food is kosher, it means it is prepared and eaten according to these laws.

In the present day, the slang term "kosher" is used to describe anything that is permitted or acceptable, especially in business or financial dealings. For example, a business deal that is "kosher" means it is legitimate and transparent. Additionally, the term can be used to describe something that is truthful and honest, such as a "kosher" statement.