Best definition
Yegua
Actual meaning: spanish for – mare aka a female horse.Mexican slang: a term used when talking about women, not necessarily

derogatory, it is more so used commonly as a means of stating ones special female friend. It is found to be more popular in the country sides of mexico where ranching and farming is usually found.

-So where is your yegua at?

-Shes out shopping right now.

-Oye, y tu yegua?

-Ella se fue de compras.