Run away everyone! It's "El Coco!"
Mothers have been were scaring their kids on the Iberian peninsula with stories about brown hairy blob-shaped creatures since the middle ages. Strangely enough, when Portuguese sailors discovered the coconut, they named it after the creature (not the other way around).
There's a lovely lullaby that goes:
que viene el coco
y te comerá.
Or the coco will come
and eat you