intransitive verb
1. : to wash one's face and hands
2. Britain : to wash the dishes after a meal
went straight to the sink where his wife was washing up — D.H.Lawrence
transitive verb
1. : to get rid of by washing
wash up the spilled milk
2. : exhaust , finish
guess we've washed up that subject — Philip Barry
a setback that washed him up as a heavyweight contender