It is a popular online buzzword among young people at present.
This sentence refers to reality with coriander and five-kernel moon cakes. It generally describes that someone or something is "different" from ordinary things and has the meaning of ridicule:
The difference here can be positive, negative or neutral, depending on the specific context. Compliment may mean that something is different, derogatory may mean that something is weird and unnatural, and neutral may just mean that something is different.
Of course, the tone of the speaker is also very important. If the tone is bad, the listener may interpret it as derogatory.