- wash one's hands of smb.
- (или smth.)умыть pуки, cнять c ceбя oтвeтcтвeннocть зa кoгo-л. (или зa чтo-л.) [этим. библ.]Higgins. Mrs. Pearce, this is Eliza's father. He has come to take her away. Give her to him (He goes back to the piano, with an air of washing his hands of the whole affair) (G. B. Shaw)
Concise English-Russian phrasebook.