A generic name used to describe any anonymous person that assumes an identity that is not his/her own. Often used within the underground immigrant community, the name Roberto Eguez is often assumed by those who are not U.S. Citizens or for some reason can not use their own name (such as criminals and fraud artists). Roberto Eguez is all men as he is no man. He is everywhere and nowhere. Roberto Eguez is not a man, he is an army.
That guy you paid to fix your fence. Example: "You mean to tell me that beaner didn't do a lick of work and ran off with your tools? What!?! He even took your toy poodle Muffy?!? Sounds like Roberto Eguez has struck again!"