Defined as:
1) The female equivilant of a wasteman, meaning a
loser i.e. waste of space.
2) A slut. A female that can be used (shagged) and then promptly discarded. A woman of easy virtue, though not necessarily a prositute.
This phrase comes from the combination of the words wasteman and gash, and is becoming ever more
popular in the north
london and the home counties of UK.