1859. Matsell, Vocabulum, s.v.

3. (Cheltenham School).—To study hard; to swat (q.v.).

To settle one’s hash, verb. phr. (common).—To defeat one’s object; to kill. For synonyms, see Cook one’s Goose.

1864. Browning, Dramatis Personæ. ‘Youth and Art.’ You’ve to settle yet Gibson’s hash.

c. 1871. Butler, Nothing to Wear. To use an expression More striking than classic, it settled my hash.

1883. Punch, Nov. 3, p. 208, c. 1. That one stab, with a clasp-knife, which settled the young Squire’s hash in less than two seconds.

1892. Hume Nisbet, Bushranger’s Sweetheart, p. 123. We’ll keep the cops off till you settle his hash, the rest replied, getting round us.

To go back on one’s hash, verb. phr. (American).—To turn; to succumb; to weaken (q.v.).

Hash-house, subs. (American).—A cheap eating-house; a grubbing crib (q.v.).

1883. Daily Telegraph, 10 Jan., p. 5, c. 4. There are [in New York] lunch counters, cookshops, ‘penny’ restaurants, fifteen-cent restaurants, commonly called hash-houses and foreign cafés.