There are 2 definitions of jack up in English:

jack up1

informal
1Inject oneself with an illegal drug.
More example sentences
  • Eric was just tired and still a little jacked up on drugs, then they did some therapy and he got even more tired.
  • He was still pretty much jacked up on drugs, and the rest of the team had practically left.
  • And how else are you going stop a 350 pound guy, all jacked up on drugs?
2Australian Give up or refuse to participate in something.
More example sentences
  • And it's the same with ADHD, there's a continuum of this behaviour and it gets to a point where either the parents, the teachers jack up or doctors say here's the behaviour beyond which we would say this is a disease.
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Word of the day hypnopompic
Pronunciation: ˌhipnəˈpämpik
adjective
relating to the state immediately preceding waking up...

There are 2 definitions of jack up in English:

jack-up2

Line breaks: jack-up

noun

1 (also jack-up rig) An offshore drilling rig the legs of which are lowered to the seabed from the operating platform.
More example sentences
  • Aminex chief executive Brian Hall said: ‘We have carefully reviewed all the drilling options for Nyuni and conclude that a jack-up rig is the most effective and appropriate option for drilling in this area.’
  • The jack-up rig with its attendant work boat has been busy drilling and sampling the rock bottom of the harbour and bay while ashore a mobile drilling rig has been sampling along the breakwater.
  • One option would be for exploration companies to club together to send a semi-submersible or jack-up rig to the East Coast, drilling a well in each of the four areas over the next four years at cost of $25 million each.
2NZ informal A dishonest or underhand way of achieving something.
More example sentences
  • The editor of the Sunday Star-Times has embarked on one of the most transparently unprofessional jack-ups in New Zealand's journalistic history.
  • The process by which Mr Derek Fox got himself to be appointed as the chief executive officer of the Maori Television Service was nothing less than a monumental jack-up - and that Minister knows it.
  • The biggest bill of the year is set to be passed under urgency this week after a jack-up between Labour and NZ First.

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