How do I politely tell my boss how horrible she is in my two week notice?

I’ve had enough and I’m putting in my two weeks soon. This woman has gas lit me harder than any man, she has screamed at me, she has embarrassed me in front of customers, she has told me to tell customers that I “have no idea what I’m fucking doing”, and many other, very specific things that I am not going to list. I’m sick of it, I’m sick of her, I’m sick of this job and being treated this way for a wage that I can BARELY get by on… how do I tell her to jump in a hole and go die without actually saying it?