BACKWASH

[noun] [U] - the backward movement of waves, or the backward movement of water caused by something, such as a boat, passing through it, or (figurative) an indirect effectThe water-skier was caught in the backwash from a passing motorboat, and fell off his skies.(figurative) The economic and political backwash of the war is still being felt.(figurative) The backwash of the President's resignation is still swirling round the capital.