Rollo: Thanks very much. Quite logical that the word is a local expression ("dialect term"?) for Hobelbank, which is a familiar word. But how do we know it is originally a Bavarian song? It is sung in the United States by Pennsylvania Dutch, who so far as I am aware come from the Rheinpfalz, in or around 1750. Are you sure about originally Bavarian?

Oh boy! "Gestern hamma g'suffa"! Kern-bayrish!