Expression USED Frequently BY Almost Everyone
(building boy / girl) • A spoiled boy (piá) or girl (guria) that doesn't join popular culture. Usually related to wealth, lives away from the street costumes, as in a building (prédio).
"Não sabe jogar bolinha de gude? Mas é um piá de prédio mesmo..."
"Don't you know how to play marbles? It could only be a building boy..."