D defs.my
Entry 2 senses Webster, 1913

jumpstart

/jŭm'-pstärtˌ/ · jump·start · IPA /dʒˈʌmpstˌɑrt/
01 v. t. To start (the engine of a motor vehicle) using a temporary connection to supply electrical power from another vehicle or another source of …
  1. 1.
    To start (the engine of a motor vehicle) using a temporary connection to supply electrical power from another vehicle or another source of current; -- an emergency procedure used when a vehicle's own battery has insufficient power to start the vehicle normally.
  2. 2.
    To provide a speedy start to (an activity) using the assistance of some external impetus; to re-energize (an activity proceeding sluggishly); -- accomplished by application of a stimulus not normally used in the activity.[Figurative]