Got it! Some trivia for ya...
El Grullo apparently translates into "the uncouth one" in English, according to an online translator. For the vocabulary impared such as myself, uncouth is defined as:
- awkward, clumsy, or unmannerly: uncouth behavior; an uncouth relative who embarrasses the family.
- strange and ungraceful in appearance or form.
- unusual or strange.
I may have just helped you to win some mad cash. Remember me if you are on a game show and you win some prizes because you know what "El Grullo" means.