On my god is a very common English expression, which is usually used to express surprise or surprise. This expression originally came from religious language, and now it has become a fixed expression in daily spoken language. It is usually used instead of "My God", so it often appears in oral expressions.

In some myths and religious stories, "God" usually refers to a very powerful being with all the abilities and powers beyond human beings. So the sentence "On my God" gives people a feeling of awe and surprise. Because "God" is lofty and sacred to some extent, On My God can also be understood as something wonderful, magnificent and supernatural, which gives people surprises and touches.

With the development of society and the evolution of culture, modern people have gradually developed more flexible expressions, and more people have begun to express their feelings with the phrase "On my God". They use it in comments posted on blogs, Twitter and social media, making it a very popular expression in English environment. It has become a representative of fixed expression, which often appears in our daily life and cultural entertainment.