Drawing a big cake means to make an absurd and unrealistic promise. What is the meaning of painting a big cake (network language painting a big cake is what terrier) painting a big cake is the meaning of unrealistic commitment, refers to other people to your commitment to some seemingly beautiful, but actually ridiculous, unrealistic things, in essence, is to use flowery language to make you willingly do things for him, and finally you finished things, he is perfunctory.
It is believed that our friends have encountered a lot of unrealistic promises since childhood, and these promises will be the future license to give you the things depicted in the best way, so that people are convinced, but in fact, after you finish, he continued to give you a beautiful dream, which is the so-called "painting a big cake".