E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Crambe bis Cocta [cabbage boiled twice].
A subject hacked out. Juvenal says, Occidit miseros crambe repetita magistros (vii. 155), alluding to the Greek proverb Dis kramb thanatos.
There was a disadvantage in treading this Border district, for it had been already ransacked by the author himself, as well as by others; and, unless presented under a new light, was likely to afford ground to the objection of Crambe bis cocta.Sir W. Scott: The Monastery (Introduction).