great unwashed

[T]he gentlemen of the inns of court, and the gentlemen of the universities… live in abodes which were erected long before the custom of cleanliness and decency obtained among us. … Gentlemen, there can be but little doubt that your ancestors were the Great Unwashed: and in the Temple especially, it is pretty certain, that only under the greatest difficulties and restrictions the virtue which has been pronounced to be next to godliness could have been practised at all.