Paris Hilton and her pals have launched a foul-mouthed attack on teen queen Lindsay Lohan.
The claws came out after Hilton came face-to-face with Lohan at a top Hollywood club.
A heated argument erupted last Friday between the two after Lohan approached Hilton, who had been partying with her sister, Nicky, and friends.
But the argument took a nasty turn when Paris and her oil heir pal, Brandon Davis, left a club on Monday night to go home.
As the pair walked to their car Davis - an oil heir worth $A31.4 billion($US24billion) - hurled a tirade of disgusting comments about Lohan.
He attacked Lohan's personal hygiene, saying her intimate area 'smells like diarrhea.'
Davis - who previously dated O.C. star Mischa Barton - repeatedly yelled abuse at Lohan and insulted the colour of her pubic hair.
"Seriously, would you f-k her? " Davis said.
Paris Hilton laughed along at the comments and raised her phone to Davis mouth so her friends could hear the insults.
Davis grandfather, Marvin Davis, made his money in oil before moving to Hollywood in the Seventies.
He bought 20th Century Fox for $A644 million (260 million pounds) in 1981 - before selling it to Rupert Murdoch.
Their family is believed to have been the inspiration behind Aaron Spelling's Eighties TV show Dynasty.
At one point her mocks Lohan as 'poor.'
He said: "I think she's worth about seven million dollars ($A9.16 million), which means she's really poor.
"It's disgusting. She lives in a motel."
He also let loose a racial insult against Lohan's former boyfriend Wilmer Valderrama.
"Is he in a mariachi band?" Davis said.
During the rant, Paris' publicist, Elliot Mintz, walks by her side, helpless and grim-faced.
He has been quick to try and distance Paris from the comments - despite the fact she laughed along and encouraged the rant.
"The only thing I want to underscore is the person making the statements was not Paris Hilton," he said.
"It is unfair to characterize Brandon's statements as being reflective of Paris' feelings about Lindsay. We're dealing with two different people. It was Brandon who was speaking, of course there are moments when Paris was laughing, but she never said anything.
Lohan's publicist slammed Hilton: "Lindsay doesn't need to drop names to get publicity - she has talent."
SplashNews/SnapperMedia