Slewfoot by Howard Hausey and Lee Webb
They tell us some alternate titles, Old Slewfoot, Slewfoot the Bear, etc. In any case Rob Waller is driving Donnie to a "90 mile and hour" pace for this fun tune. Robert Swain often sang this one for us before his 2014 stroke, and is doing a fine job on the Baritone parts on this and adding to all of our harmony singing nowadays.