Cebeça de cuia is a legend in the state of Piaui. This is the story of Crispin, a young boy who lived on the banks of the river Parnaíba. His family was poor. One day, coming for lunch, his mother served him, as usual, a thin soup with bones, since it lacked meat in his house often. That day he rebelled, and in the midst of discussion with his mother, threw the bone against her, hitting her in the head and killing her. Before he died he cursed his mother hang around the river and also the effect the curse, Crispin was with a very large head the size of a bowl, hence the name "bowl head". The mother also told him that his sentence would last until it relacionase sex with virgins seven Marias. Given this legend, many girls do their laundry once shunned the banks of Emotions. -