To raise, hoist, or lift a thing using a jack, or similar means.
The oil rig can be jacked up higher when the hydraulic legs touch the sea floor.
Additional definitions for 'jack up':
|jack up||To raise, increase, or accelerate; often said of prices, fees, or rates. See also jack up the price.|
|jack up||To ruin; wreck; mess up; screw up; sometimes as a bowdlerized substitution for f** up.|
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