испачканные руки (виновность, участие в чем-то нечестном)
If someone wants to do business with the mafia, they are likely to get their hands dirty.
Если кто-то хочет вести бизнес с мафией, он, вероятно, испачкает руки.
Definitions
Having hands that are soiled or unclean, often from dirt, grease, or another substance; can also be used metaphorically to describe someone involved in dishonest or unethical activities.
