This song describes the titular device, which is used to paralyze cattle before they are slaughtered. However the lines "Blitz-kerner homicide/To cull the human herd despised" implies that this is from the perspective of a sociopath using the device on humans.
This song describes the titular device, which is used to paralyze cattle before they are slaughtered. However the lines "Blitz-kerner homicide/To cull the human herd despised" implies that this is from the perspective of a sociopath using the device on humans.