washout

(n) the channel or break produced by erosion of relatively soft soil by water
- it was several days after the storm before they could repair the washout and open the road
(n) the erosive process of washing away soil or gravel by water (as from a roadway)
- from the house they watched the washout of their newly seeded lawn by the water
wash,
(n) someone who is unsuccessful dud, flop,

wash dud flop