Unna (Und)
Trimmer, ligger or bank runner, essentially a device allowing the business end of a fishing line to remain dangling in the water for extended periods (e.g. all night for pike, or while you go and cook sausages for ice-fishing). Could be a disk-shaped block of wood that floats, or one too large to pass through the hole in the ice, a spring-action system planted into the snow... Part of a fishing-tackle group, see also Vabe.