The promise that falls on you is Indian flying cake. What do you mean?

The promise that falls on you is an Indian flying cake, which means that if someone or something fails to fulfill the promise, the promise becomes meaningless, just like an Indian flying cake. This sentence is a network phrase or buzzword, and its specific meaning needs to be understood according to the context. "The promise that falls on you" means that the promise to someone or something has not been fulfilled, and "Indian flying cake" is a traditional food in India, which is used to indicate that the unfulfilled thing becomes meaningless.