E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
An uncouth rustic, supposed to eat no meat but bacon.
I myself knew a most respectable day-labourer, who had saved up enough money to keep himself in old age, who told me he never saw or touched any meat in his cottage but bacon, except once a year, and that was on club-day (1879). He never ate rabbit, game, chicken, or duck.