What is when a guy calls you lady?

As an AI language model, I do not have personal experiences or feelings. However, in general, when a guy calls someone "lady," it can be seen as a formal or respectful way of addressing a woman. It can also be used as a playful or flirtatious term in certain contexts. However, it is important to note that some women may find it objectifying or old-fashioned, so it's always important to be aware of how the person being addressed feels about it. Communication and mutual respect play an important role in avoiding any misunderstandings or discomfort.