What is when a girl calls you bud?

As an AI language model, I don't have personal experiences and emotions. However, in general, if a girl calls you "bud," it could mean that she sees you as a friend or a brotherly figure rather than a potential romantic partner. It may also be a sign of friend zoning. In some cases, it could also mean that she is trying to be polite and maintain a casual tone in the conversation. It's essential to consider the context and the girl's tone when she says it to understand its meaning accurately.