@AmandaK: "Mijo" (pronounced MEE-hoe) is a portmanteau of "mi hijo" (my son). It's fairly common Spanish slang in the Western Hemisphere. Parents sometimes address daughters with the feminine version "mija" (MEE-ha, from "mi hija" or "my daughter").
"Luchador" (pronounced loo-cha-DOOR) refers to a masked wrestler in the Mexican tradition where the fighters wear masks and specific costumes for quick recognition and play well-defined good guy/bad guy roles. It's quite the soap opera (or so I've been told).