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

As an AI language model, I don't have personal opinions. But, when a guy calls you kitten, it could be a term of endearment or a flirtatious nickname. It suggests that he finds you cute and playful. However, it's always important to consider the context and your feelings about the situation before drawing any conclusions. Ultimately, it's up to you to decide how you feel about being called kitten and to communicate your desires and boundaries with the person using the term.