When someone says, "my hair is longer than yours," they are making a comparison between the lengths of their hair and the other person's hair. It's a straightforward statement indicating that the speaker's hair is longer than the listener's hair.
This statement could be a simple observation, a playful remark, or even a topic of conversation about hair length. It might not necessarily carry any deeper meaning beyond the literal comparison of hair lengths.
Sometimes people may use such statements in a lighthearted or teasing manner, but context and tone are essential to understanding the intention behind the statement. In casual conversations, it's common for people to make light comparisons like this without any negative connotations.
Overall, it's a basic comparison related to hair length, and it's best to take it at face value unless the context suggests otherwise.