Kosher and Real stuff

Kosher adjective - Conforming to dietary laws.

Real stuff and kosher are semantically related In some cases you can use "Real stuff" instead an adjective "Kosher".

Real stuff noun - Informal usage attributing authenticity.

Kosher and real stuff are semantically related in genuine topic. You can use "Kosher" instead an adjective phrase "Real stuff", if it concerns topics such as authentic.