What does it mean when a girl replies “I’m girl” after I show interest?

[HMedlej]

I asked a girl on the bus to tell me her name because I am interested in becoming friends with her, and she replied "I'm Girl." And we ended the conversation. What does it mean when a girl says this?

[valentina4eva]

it means she wasn’t interested & doesn’t want to give u her info

[Anonymous]

Unless there was a language barrier, she pretty much doesn't trust you enough to give you her name

[HollyK21]

That means she is not interested.

[Anonymous]

Maybe that she’s underaged.