Meanings
Probably originated from the sense of girl meaning "one's girlfriend".
I, me, or myself; yours truly.
Example: "The minute you pull that one, your girl is out."
Example Sentences
1
Don't worry, your girl will have your back in times of need.
2
I can always count on your girl to keep a secret.
3
You must be proud of your girl for getting into her dream university.
4
Can you introduce me to your girl? She seems interesting.
5
I heard your girl won the dance competition. She's really talented!