1. The action of holding onto a bar or pole-like object, which is more or less horizontal, such as the arm of a water pump, and pushing it repeatedly up and down, or any action or any thing directly or indirectly related to this, especially a car jack.
As a Noun:
1. A mechanical device that is used to lift a heavy object, especially a car, off the ground. English = jack.
As a Verb or Adjective:
1. To lift a heavy object, especially a car, off the ground by using a special mechanical device. English = jack up.