1872. Chambers’ Jour., April. Joe Rullock, the mighty gymnasiarch,
the hero of a hundred grinds, the unwearied haunter of the
palæstra, could never give the lie to his whole past life, and deny
his own gymnastics.
6. (venery).—An act of sexual intercourse: e.g., To do a grind. [Mill
and grindstone (venery) = the female pudendum.] For synonyms, see
Greens and Ride.
1598. Florio, A Worlde of Wordes. Macinio, the grinding of grist.
Also taken for carnal copulation.
1647. Ladies Parliament. Digbie’s lady takes it ill, that her Lord
grinds not at her mill.
The grind, subs. phr. (Cambridge University).—The ferry-boat at
Chesterton.
Verb. (University).—1. To prepare for examination to study: to read.
1856. T. Hughes, Tom Brown’s School Days, pt. II., ch. vii. ‘The
thing to find out,’ said Tom meditatively, ‘is how long one ought
to grind at a sentence without looking at the crib.’