have done with (someone or something)
To be finished with someone or something; to cease being involved with someone or something. I've been working on this essay for hours now, so I'm just going to write the conclusion and have done with it. That group has been a really negative influence in my life, so I've decided to have done with them altogether.
have done
Stop or cease, as in Have done-enough of this nonsense. This idiom is also put as have done with, as in This arrangement won't work; let's find a new one and have done with it. The past participle done has been used in the sense of "finished" since about 1300. Also see have to do with.