What does jacking mean?
Jacking is the act of lifting or supporting a load with a jack, a mechanical device that uses leverage, hydraulics, or a screw mechanism to raise heavy objects. It is especially common in technical and industrial contexts, including vehicle repair, construction, shipping, and the handling of machinery. Hydraulic jacking, for example, relies on pressurized fluid to provide controlled lifting force. In informal usage, jacking can also denote theft, most often the unauthorized seizure of a vehicle, though this sense is now usually encountered in established compounds such as carjacking and container jacking. The word is most useful when describing the action of raising something mechanically, where it distinguishes the operation from the device itself. Although simple and unpretentious, it is an important term in engineering, transport, vehicle maintenance, and security.
nounThe act of lifting or supporting something with a jack or similar device. It may also refer informally to theft, especially the unauthorized seizure of a vehicle.
- The action of lifting, raising, or supporting something with a jack or similar device.
- Informally, theft or unauthorized taking, especially of a vehicle.
"The mechanic began jacking the rear of the car before replacing the exhaust pipe."
"Hydraulic jacking was required to lift the heavy machinery into position."
"The increase in vehicle jacking led police to improve nighttime security."
Usually countable when referring to separate lifting operations or instances of theft.
"The engineers completed three separate jackings during the day."
One small device can do the heavy lifting: a jack makes jacking possible.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does jacking come from?
The word is formed from jack, the name for a lifting device, with the suffix -ing, which converts the verb into a noun of action. Jack has been used for mechanical lifting devices since medieval English. The deeper origin of the mechanical sense is uncertain, so no more specific derivation can be stated confidently.
How jacking is actually used
In its mechanical sense, jacking is chiefly technical and often occurs in phrases such as “jacking up.” Its sense meaning theft is informal and is now most often encountered in compounds such as “carjacking” or “container jacking.”
Easily confused with jacking
Jacking commonly refers to lifting with a mechanical device, whereas hijacking chiefly means illegally taking control of a vehicle or another transport.