What searchers often overlook is that many words have several meanings, even obscure or now obsolete words, particularly if they have been in use for several centuries as demonstrated here. 'Rumbelow' meaning in the 16th century a place on the way to Hell, could easily have evolved into all sorts of related meanings over the next couple of centuries. If Rumbelow was seen by the establishment/church as a place where all sorts of debauchery went on then it would be easily adopted as a great place to be by those who loved debauchery.