reefer's nut
noun1
The centre part of a ship’s biscuit. This part was compressed and even harder than the rest of the biscuit.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
noun
The centre part of a ship’s biscuit. This part was compressed and even harder than the rest of the biscuit.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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