The best friend in the whole entire world and the most perfect person that could ever come into your life! The only person that can make you smile every time you think about them no matter what kind of mood you're in. Anyone who doesn't know a Marta should could get to know one because who knows, one day they could change your life :)
Person 1: Hey, do you know that Marta chick?
Person 2: Oh hell yeah I do! That's my best friend in the entire world!
Person 1: I wish I had a Marta...
Person 2: I bet you do, who doesn't? :)