What does 'Potranca' mean?

I discovered Bronco a while ago and I kinda like it. One of his songs is called La potranquita. Out of the context I understood he's talking about a girl, but I have no clue what it means exactly. could some one help me out?

Thx a million
Heksje

Potranca, is apparently, a young horse.

potranca - WordReference Forums

It's a regional word :P

The little horses are called "potro" in Spanish

Potranca is a girl who ride horses, potranquilla, potranquita is little girl who ride horses.

In other words... "little cowgirl"

See you!
Adios

thank you so much

these little words can keep bugging me for days if i don't find out what they mean ;o)

No hay problema

Whenever you need

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