What does it mean when a girl wants to "hit" you?

I was having a convo with a girl and we were roasting each other a little bit. I jokingly said that she was small (in height) and after that she said that she is gonna hit me. She also told me not to disrespect her but It was clear that it was a joke. Does she have masculine tendencies or could she be joking as well?
What does it mean when a girl wants to "hit" you?
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