An Edmundo is a mustache on the bottom lip. It's not a soul patch. It extends across the entire bottom lip, from one corner of the mouth to the other. (an opposite mustache if you will)
guy1: "Hey man, I think i'm going to grow a soul patch."
guy2: "No no man! Don't you know Edmundos are the new soul patch?"
guy1: "Oh yea? Thanks. I'll grow an Edmundo!"