I have a two-part question here. When I lived in Yangzhou (扬州) I often heard the expression "gua gua long di dong" which is kind of an extension/variation on 呱呱叫, a slang word meaning great or excellent. This funny phrase was always followed by the reply of "韭菜炒大葱" (I'm guessing because it rhymes?). But nobody outside Yangzhou had ever heard this expression. 1. What are the 汉字 for "gua gua long di dong"? (I hope they exist) 2. Are there any other cool phrases like this? I believe this is kind of like a code word to see if someone is from that certain part of China. It'd be really interesting to hear if this phenomenon exists elsewhere.