The word nego is Portuguese for `` I deny '' . It refers to protests in the 1920s in ParaÃ ba against JÃ lio Prestes becoming the President of Brazil . The word nego is Portuguese for `` I deny '' , referring to the protests that erupted in the 1920s in ParaÃ ba , supported by state governor JoÃ # o Pessoa CavalcÃ cents nti de Albuquerque , to the appointment of JÃ lio Prestes as the President of Brazil .