CHOSTO synonym for verga , sny . In Chile died in 2010 one of the greatest puetas (sic) guitarrón singers, Osvaldo "(don) Chosto" Ulloa, whose nickname would probably come from his 10 children. It was usual to sing at children's wakes and also that they died and he went to 4 or 5 a month, he even sang to a son of his who died.