1. Introducing water into a pump to improve the seal and start the water flowing
   "Pump priming was necessary to get the old well working again"
    
2. Spending money raised by borrowing; used by governments to stimulate their economy
   "The government turned to pump priming during the recession";
   - deficit spending, compensatory spending

Type of: care, disbursal, disbursement, maintenance, outlay, spending, upkeep

Encyclopedia: Pump priming