1, the original meaning: Chinese cabbage is an edible vegetable, the owner will grow Chinese cabbage in the garden to eat, and the nature of pigs is digging. When the pig runs into the garden, the Chinese cabbage will arch up.
2. Now meaning: "pig" refers to men, and "cabbage" refers to girls. "Good cabbages are arched by pigs", which means "Good girls are spoiled by bad boys".