Samantha Ronson & Lindsay Lohan Reunite

Lindsay Lohan Sam Ronson

Attn: Joan Rivers. Don't make fun of Lindsay Lohan on Twitter or Sam Ronson will strike back.

Lindsay Lohan, professional hot mess, has gotten her fair share of ridicule these past few weeks. From her teary courtroom confession that landed her 90 days in the slammer to her profane, pastel-swirled nails, there has been more than enough material for everyone in the comedy world to take a crack or two at Lindsay. However, there is one person who isn't finding anything funny about the sad state of Lindsay's life: Samantha Ronson.

When Joan Rivers decided to post a few jokes about Lindsay on her Twitter account, Sam quickly came to LiLo's defense, reports New York Magazine.

"Lindsay Lohan is so dumb. Her idea of being sworn in is cursing at the judge," tweeted Joan, who followed it up with: "Lindsay Lohan had 'F-ck you' painted on her nails. What people don't know is that the judge had 'Eat me you party skank,' painted on hers." Lindsay Lohan Denies Girlfriend, Faces Jail Time

Perhaps it was Joan's last joke that really ticked Samantha off:

"I was just reading about the new Lindsay Lohan diet, which is all liquid. 80 proof."

Finally, Samantha shot back with a zinger of her own:

"Hey Joan Rivers. You have collagen older than Lindsay, pick on someone your own age, oh wait I guess people that old can't hear."

For her part, Lindsay seemed to enjoy the attention and retweeted Sam's message, along with a "thank you. ;)" Lindsay Lohan Aggressive, Desperate For Sam Ronson

The two must have bonded over their Twitter experience, because according to TMZ, they were later spotted eating at a sushi restaurant in Beverly Hills, the first time they have been publicly seen together in months.

In spite of their supposed bad break-up and Lindsay's legal woes, could Sam and Lindsay be back together again?