prop wash

noun3

1. •
   The disturbed mass of air or water pushed aft (or forward when in reverse) by the propeller of an aircraft or propeller-driven watercraft.

   • The plane's large rear doors swallowed up my friend in superfast time, its departure sandblasting everyone in red prop wash as it vaporised down the main street and into the afternoon's dust-bowl sky. — 2005
2. •
   A byproduct of thrust produced by a propeller.
3. •
   (humorous) A mythical substance supposedly used to wash propellers.

   • We sent the new recruit to obtain a bucket of prop wash.