slipstream >> ˈslɪpstriːm
Definition: [noun] a current of air or water driven back by a revolving propeller or jet engine.
Definition: [noun] an assisting force regarded as drawing something along behind something else.
Example: when the US economy booms, the rest of the world is pulled along in the slipstream
Definition: [verb] (especially in motor racing) follow closely behind another vehicle, travelling in its slipstream and awaiting an opportunity to overtake.
Example: he then slipstreamed and overtook me again