To the definitions given added that 'coco' is a familiar way of referring to the head, by resemblance to the fruit of the coconut tree. And in addition to several islands, rivers and towns, it is the name of an imaginary character that is used to scare children with their supposed presence. Although to differentiate it from people who have 'Coco' as a nickname, in some places it is called cuckoo.
It is a colloquial form in Colombia call the head, the mind. It has as synonyms Cotter, cranium, chola, pepa. I birthed or terror with which frightened children who misbehave. Coconut is the name of the fruit of the coconut palm. It is a Palm with scientific name Cocos nucifera and is in the Arecaceae family. Its main product is Copra.