They are all aspiring musicians, with each character representing stereotypical characteristics of people from these 4 regions.
The social status model suggests that stereotypical male characteristics are more socially desirable than stereotypical female characteristics.
The lyrics go on to list different kinds of female birds which in turn depict stereotypical characteristics of women in Serbo-Croatian slang.
Much of the comedy is sight gag/action based with some focused around comical accents and stereotypical southern characteristics.
In other words, the PD criteria assume unfairly that stereotypical female characteristics are pathological.
Although the band seemed to be working-class (a stereotypical characteristic for a punk musician), they had a middle-class (or even upper-class) upbringing.
However, these descriptions may be attributable to the stereotypical characteristics of a Cossack.
They were chosen for their perceived stereotypical racial characteristics.
Compare this, however, to the descriptions of Lilla as a, "beautous" and "fair" girl, the stereotypical characteristics given to female protagonists in many gothic novels.