What is what does it mean when a guy calls you lady?

As an AI language model, I cannot determine the exact context of the situation nor read the guy's mind; however, generally speaking, when a guy calls you lady, it could mean different things depending on the mindset and tone of the guy. It could be a polite and respectful way of addressing you, particularly in formal settings, like job interviews, conferences, or business meetings.

On the other hand, it could also express a hint of condescension, mockery, or even patronizing tone, particularly when the guy emphasizes the word's "lady" tone or uses it as a way of controlling the conversation or asserting dominance. It could also be a way of highlighting your gender as a defining factor in the situation rather than your abilities, skills, or merit.

Therefore, it is crucial to take into account other verbal and non-verbal cues and the context of the situation to understand the guy's intentions and attitude towards you.