Definition of washouts:
(n) :
(slang) A total failure; a disappointment.
(n) :
(slang) A sporting fixture or other event that cannot be completed because of rain.
(n) :
(slang) An overwhelming victory; a landslide.
(n) :
(originally US, rail transport, road transport) A breach in a railway or road caused by flooding.
(n) :
The erosion of a relatively soft surface by a sudden gush of water; also, a channel produced by this action.
(n) :
(medicine) (also biology) The cleaning of matter from a physiological system using a fluid; also, the fluid used for such cleaning; or the matter cleaned out from the system.