In Colombia it has two different meanings. It can mean ironic, cunning, stingy, malicious, naughty, sympathetic, sparky, it is nice or cheerful. It also means rascal. crook, sly, sly, thief, crook.
Picaro wants to mean person who steals is clever naive but just to make case esque malvadesotro are maldiciosos a tunante, sly