prop

noun

1. A blow; the act of striking someone.

   “There was some good counter hits, and then Foster received a prop on the nose which drew the claret.”

2. A scarf pin.

verb

Etymology: Clipping of propeller.

1. To manually start the engine of a propeller-driven aircraft with no electric starter by pulling vigorously on one of the propeller blades using the hands, so that the propeller can catch ignition.