GET ONE'S HANDS DIRTY (OR DIRTY ONE'S HANDS)
Meaning of GET ONE'S HANDS DIRTY (OR DIRTY ONE'S HANDS) in English
get one's hands dirty ( or dirty one's hands)
do manual, menial, or other hard work.
→ dirty
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004