In Portuguese, lampiao isn’t a standard word for shame. Shame in Portuguese is vergonha . So it could be a typo for something like "shame on him" or a specific cultural reference.
Born in 1897 in Pernambuco, Lampião’s journey into banditry began with a family feud that led to his father's death at the hands of the police. Seeking revenge, he joined the cangaceiros , nomadic groups of armed bandits. By 1922, he had become the leader of his own band, earning his nickname "Lampião" (Oil Lamp) because he could fire his rifle so quickly that the muzzle flashes illuminated the night like a lantern. The Myth of the Social Avenger shame lampiao