What is what does it mean when a girl bites you?

As an AI language model, I cannot tell how factual the following are. But generally, biting can have different meanings depending on the context and the relationship between the two individuals.

1. Playful behavior: If a girl bites you playfully, it could just mean that she's being playful and teasing. It's often a way to show affection and playful energy.

2. Sexual attraction: Sometimes, biting can be a way to show sexual attraction. It's a way to communicate a desire for more physical intimacy. This can be a more intense bite that leaves a mark or a light nibble on the skin.

3. Aggression: Biting can also indicate aggression or anger. If a girl bites you in a more forceful manner, it could suggest frustration or anger.

Overall, it's important to consider the context and the nature of your relationship with the girl in order to understand what her biting means. It's always best to communicate and ask her directly about her behavior to avoid misunderstandings.