pumper

/ˈpʌmpər/
noun
  1. A person or thing that pumps, such as a worker who operates a pump or a machine that moves fluids.
    • The pumper checked the water levels at the treatment plant every hour.
    • A gas station pumper helped fill the car's tank.
    • The old pumper in the basement finally broke down after years of use.
  2. A type of shoe, especially a sneaker or athletic shoe (informal).
    • The store had a sale on all basketball pumpers.
    • Her favorite pumpers were bright red and very comfortable.
    • He bought a new pair of pumpers for his morning jog.