http://en.wikipedia.org/wiki/Coco_(folklore)
The myth of the Coco (Cuco, Coca, Cuca, Cucuy) originated in Portugal and Galicia. According to the Real Academia Española the word coco derives from the Portuguese côco, which referred to a ghost with a pumpkin head. The word coco is used in colloquial speech to refer to the human head in Portuguese and Spanish. Coco also means "skull". The word "cocuruto" in Portuguese means the crown of the head and the highest place. In Basque, Gogo means "spirit". In Galicia, crouca means "head", from proto-Celtic *krowkā-, with variant cróca; and either coco or coca means "head". It cognates with Cornish crogen, meaning "skull", and Breton krogen ar penn, also meaning "skull". In Irish, clocan means "skull".
In the Galician Lusitanian mythology, Crouga is the name of an obscure deity to whom offerings were made.
Coca is a female dragon that in medieval times, in the Iberian Peninsula, used to take part in different celebrations. In Portugal one still survives in Monção and she fights in some sort of medieval tournament with saint George during the Corpus Christi celebrations. She is called "Santa Coca" (Saint Coca) or "Coca rabixa" (Taile Coca) and if she defeats Saint George, by scaring the horse, there will be a bad year for the crops and famine, if the horse and Saint George win by cutting off one of her ears with earring and her tongue, the crops will be fertile. Oddly enough the people cheer for Saint Coca.

забавно, cola на некоторых романск. языках значит "хвост", т.е. кока-кола это дракон кока с хвостом



кока-кола и викока-кола