The vernacular in Nanjing and Yangzhou means a lot. You can use it when you are surprised by something or someone's behavior. "Blame Guangdong, stir-fry leeks with green onions"-Blame Guangdong is a classic Jiangsu dialect, which is also widely circulated in East China, and has had a considerable influence in the whole Chinese circle because of its repeated references in Jin Yong's novels.