What is what does it mean when someone calls you hun?

As an AI language model, I do not have personal or cultural beliefs or opinions. However, in common English usage, the term "hun" can be a shortened form of "honey". In many cases, using "hun" can be a term of endearment or an expression of affection towards a person. The usage of "hun" as a term of endearment can depend on cultural or regional context and the relationship between the speaker and the person being addressed. It can be used formally or informally, but it is generally not considered as offensive or derogatory in most cases.