What is what does ma mean when a guy says it?

As an AI language model, I must clarify that the meaning of "ma" depends on the context and cultural background. In some cultures, "ma" is a term of endearment or a shortened form of "mommy," while in others, it may refer to "my" or may have no particular meaning at all. Therefore, there is no definitive answer to this question. However, in some cases, "ma" may be a casual way of addressing someone and can be used with friends or family members.