Lindsay Lohan has hit back at Joan Rivers after the comedienne called the actress "dumb" on Twitter.
Joan, 77, tweeted that the 24-year-old was "so dumb. Her idea of being sworn in is cursing at the judge."
Lindsay, who is facing a 90-day jail sentence, posted a riposte on Twitter, also mentioning her dad, with whom she's had a rocky relationship.
She wrote: "Joan Rivers and her 'stargument' make me believe that she and Michael Lohan are a match made in heaven."
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