What does y vos mean in spanish?

Y vos is a colloquial way of asking how are you in the Rioplatense region of South America, which comprises the Uruguayan and Argentine coasts, as well as parts of Paraguay, Bolivia, and Brazil. It is short for y vos cómo estás? (and how are you?). The phrase is thought to have originated from early European immigrants who had difficulty understanding the gaucho accent of ¿Y usted como está? meaning And how are you? They misheard the phrase and it became y vos.

Y vos is not always thought of as appropriate in formal situations. However, it can be used in informal settings with friends, family and peers.