The phrase "What's sauce for the goose is sauce for the gander" means that what is acceptable or appropriate for one person should also be acceptable or appropriate for another person, often referring to both men and women. It emphasizes fairness and equal treatment, implying that if one person is allowed to do something or behave in a certain way, then another person should be allowed the same treatment. The phrase originates from the idea that the same sauce used for cooking a female goose is equally suitable for a male goose (gander), symbolizing equal treatment regardless of gender. It is a proverb used to argue against double standards and to promote consistency in rules or behavior.
