Definition: In ancient Israel, there was a religious text called Leviticus which dealt with sexual practices and their consequences. The verse 1:8 specifically mentioned that "A man shall not make his wife a concubine." This meant that a husband couldn't have multiple women as his sexual partners.
Example sentence: "I know how to cook, but I can't find the right ingredients for my next dish because I've got a bunch of Leviticus 1:8 in my pantry!"