dirty (one's) hands(redirected from dirtying his hands)
dirty (one's) hands
To partake in especially underhanded, illicit, or illegal work or activities. The public can't be allowed to think that I, a senate hopeful, would ever dirty my hands with a tax-evasion scheme such as that.
dirty one's hands
Also, get one's hands dirty or soil one's hands. Do something shameful or illegal. For example, He refused to dirty his hands and give jobs to the big campaign donors, or Getting one's hands dirty by lying to the boss will be severely punished, or She would not soil her hands by cheating. This expression is a metaphor for literally defiling or soiling oneself. [Mid-1600s]