The idiom "wash your hands of" means to disassociate oneself from a situation or person, to refuse to take responsibility for something or to stop being involved in something.
For example, if a friend keeps getting into trouble and you have tried to help them but they continue to make bad decisions, you might say "I'm washing my hands of this situation" which means you are no longer going to try to help them or be involved in their problems.
Another example could be if you are in a business partnership with someone who is not doing their fair share of the work, you might say "I'm washing my hands of this partnership" which means you are no longer going to be involved in the business with them.
In both cases, the idiom "wash your hands of" means to distance oneself from a situation or person and to no longer be responsible for it.
• The company's CEO vowed to wash his hands of any unethical behavior.
• She decided to wash her hands of the business after years of struggling to make a profit.
• After the argument, I washed my hands of the friendship and moved on.
• The politician tried to wash her hands of the scandal, but the evidence was too strong.
• I washed my hands of the situation and left the room.
• The lawyer advised his client to wash his hands of the case and accept the plea deal.