JACKING. Taking the skin off a seal.
JACK IN OFFICE. An insolent fellow in authority.
JACK IN THE BASKET. A sort of wooden cap or basket on the top of a pole, to mark a sand-bank or hidden danger.
JACK IN THE BOX. A very handy engine, consisting of a large wooden male screw turning in a female one, which forms the upper part of a strong wooden box, shaped like the frustum of a pyramid. It is used by means of levers passing through holes in it as a press in packing, and for other purposes.
JACK IN THE BREAD-ROOM, or Jack in the Dust. The purser's steward's assistant in the bread and steward's room.
JACK-KNIFE. A horn-handled clasp-knife with a laniard, worn by seamen.
JACKMAN. A musketeer of former times, wearing a short mail jack or jacket.
JACK NASTY-FACE. A cook's assistant.
JACK OF DOVER. An old sea-dish, the composition of which is now lost. Chaucer's host in rallying the cook exclaims,
"And many a Jack of Dover hast thou sold,
That hath been twies hot and twies cold."