As said Danilo Enrique is the affectionate diminutive of rapaza. It is a term well handsome Gallego and asturleones alistano language. In my country the same as rapacin is used frequently to refer to children who are beginning to give the Tin. They also say rapacica.
It is a word of Portuguese language ( and in Galician ) that means little girl, little girl, chinita. It is a feminine diminutive of Raptor. How loving of approaching a girl.