The embattled actress, who is bound for jail next week and rehab after that, is responding to comments made by Rivers.
The 77-year-old comedian tweeted that the 24-year-old starlet is "dumb" and joked about her hard-partying habits, "I was just reading about the new /*Lindsay Lohan*/ diet, which is all liquid. 80 Proof."
Lohan responded by saying her father, Michael Lohan and Rivers would be a match made in heaven and that all he would need is her botox doctor.
The young celeb later tweeted these lyrics by 50 Cent, "you shouldn't throw stones if you live in a glass house and if you got a glass jaw, you should watch yo mouth."