Why were the Swing kids called swing-heinis?

The Swing Kids, a youth subculture in Nazi Germany during the late 1930s, were dubbed "Swing-Heinis" as a derogatory term by the authorities. The name combined "swing," referring to the jazz and Swing Music they enjoyed, with "Heini," a colloquial term for a foolish or silly person. This label reflected the regime's disdain for their nonconformist lifestyle, which included defiance against the strict cultural norms imposed by the Nazis. The Swing Kids embraced American Jazz Music, fashion, and dance, representing a form of rebellion against the oppressive political climate.