What is what does thx mean from a girl?

When a girl uses "thx," it generally means "thanks," a casual and abbreviated way of expressing gratitude. The tone and context in which it's used can vary, often depending on the nature of the relationship and the conversation. Here are a few possibilities:

1. Casual Gratitude: In most cases, "thx" is simply a quick and informal way to say thank you, similar to "thanks" or "ty."

2. Efficiency: In texting or online messaging, brevity is often appreciated, and "thx" is a concise way to acknowledge appreciation without delving into a longer conversation.

3. Tone and Context: The tone can sometimes be inferred from how it's used. For instance, if she adds an emoji or exclamation point ("thx! 😊"), it might come across as more enthusiastic. Conversely, a plain "thx" might be neutral or polite but not overly warm.

4. Relationship Dynamics: Depending on the relationship, "thx" could mean different things. With close friends, it might be typical shorthand, whereas in a more formal setting, it might feel a bit casual.

5. Emotional State: Sometimes, the tone or brevity of "thx" might reflect her current mood or emotional state. If the conversation was serious or tense, it might be a sign that she is keeping things brief.

It's important not to read too much into a single word; if you're unsure about the sentiment, consider the overall context of your interactions.