When you're determined to achieve something without fancy methods or politeness. She got down and dirty with her renovation project, doing all the work herself.
Pro Tip 2/3
Intense Involvement
Fully engaging in an activity with all your effort, ignoring distractions. To win the competition, they had to get down and dirty with their practice sessions.
Pro Tip 3/3
Casual Context
Used in informal situations e.g., among friends or in casual conversation. At the jam session, everyone was ready to get down and dirty with their instruments.