E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Brosier.
Eating one out of house and home. At Eton, when a dame keeps an unusually bad table, the boys agree together on a day to eat, pocket, or waste everything eatable in the house. The censure is well understood, and the hint is generally effective. (Greek, broso, to eat.)