내 발에 먼지를 뿜어내다

You have been very, very bad! You've not done anything I asked, you've been lazy, made excuses, and tried to claim you didn't know how to do things so that I end up doing it for you but we're not going to have any more of that. You know that if someone is bad then they must be punished, the traditional punishment of course lines, but I know you'll fuck that up. I want you to learn, so you will be doing another kind of lines, lines of the disgusting, hard skin that I had to pumice from my feet myself since nobody bothered to book me a pedicure, let this be a lesson to you.