This slang can be used to describe some bad situations or setbacks, such as failure, bad luck, being too busy and so on. In Fujian, this slang is very common, and there are many variants, such as "dogs eat meat and want soup in the pot" and "dogs want to shit and lift their legs".
In a word, "Dog Chicken Cup" in Fujian dialect is a vivid slang with local characteristics, which is often used by Fujian locals and is liked by many people because of its humor.