In the northeast of China, this is a very common habit of addressing his wife. This is a generous, straightforward and domineering honorific title in the local area, which reflects the wife's position in the family, and such a title will not cause her resentment. Instead, I feel very used to it. This is a very humorous expression.
In Shanghai in the south, they will call their wives Lao Bu:
This is indeed the local address for wives, which has its own regional characteristics, and women in Shanghai are very elegant and gentle, and their family status at home is also very high.
Therefore, this gentle expression can just reflect the love for his wife, and there is a feeling of calling him by his nickname. This may also be a style revealed in the bones of Shanghainese. From the bottom of my bones, it is gentle and gentle.