leave you to itINFORMAL
This page is about the conversational phrase leave you to it
You can say this to someone when you're leaving, esp. if they're busy doing something.
- After I'd fixed her computer, I said, "OK, then. I'll leave you to it, but let me know if it crashes again."
- "You're busy now, so we'll leave you to it. But come over later if you like."
Marian said, "I'll leave you to it." The person she spoke to
Contributor: Matt Errey