Joan Rivers calls Chelsea Handler a drunk and a whore, clip below.

Handler appeared on Howard Stern Monday, telling Stern, “What the f**k do I care about Joan Rivers,” adding that she didn’t appreciate some of what Rivers said on stage about her at a recent event.

Rivers hit the show the next day to share a piece of her mind.

With daughter Melissa in tow, the comedy queen said Handler made it big by “f**king the president” of the network.

“She’s fine, she’s ordinary, she’s not a genius, she’s an ordinary girl that was f**king somebody high up in the industry and they gave her a break,” continued Rivers.

Adding that she thinks Handler is a “drunk” who’s not “particularly funny,” Rivers issued a warning: “Don’t you come after me, you whore!”