In a video posted Thursday on YouTube.com, Lohan was captured leaving a Los Angeles hotel inside which Hilton had reportedly been partying. The 20-year-old actress, as she was getting into the passenger side of an SUV, used the profanity to describe Hilton after an observer asked if they'd fought earlier.
"She's kidding," a friend in the back seat quickly followed up Lohan's sniping.
When asked why she used the word she did, Lohan backtracked: "I never said that. Paris is my friend ... No, I love her."
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The car then sped off into the night.
Lohan, probably more famous for her tabloid-churning antics than for her movie roles, will next be seen in the drama, "Bobby," slated to be release Nov. 17.