This phrase is used when someone is trying to change or “improve” a way of doing something that works perfectly well. Why change something that works? You could ruin everything! This proverb goes nicely with the proverb “leave well enough alone.”

*Note: “Ain’t” is not correct English. It’s an informal way of saying “isn’t” or “is not.” This style of speaking is popular in the Southern states of the United States and in farming regions.