See Also: Jack Line, Jack Stay - Sailing(gambling)
Jack the Lad(dictionary)
Jack(1)(dictionary)
jack(3)(dictionary)
Jack-in-the-box(dictionary)
jack(4)(dictionary)
jack(5)(dictionary)
jack-up(dictionary)
new jack(dictionary)
jack(encyclopedia)

jack-up (iou)



jack-up noun. M20.
[from JACK verb + UP adverb1.]
A type of offshore oil-drilling rig, the legs of which are lowered to the seabed from the operating platform. Also jack-up rig.