It's Lindsay Lohan vs. the Voyeur Nightclub waitress Round Three.

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Round One: Lindsay tweeted Thursday night that a waitress had punched her during her 24th birthday party.

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Round Two: RadarOnline.com was first to report, the waitress Jasmine Waltz -- who has dated Ryan Seacrest, pop star Jesse McCartney and Paris Hilton's ex Doug Reinhardt --  said "that disturbed little train wreck is delusional!" and "I did not hit her... but I'd like to."

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Now it's Lindsay's turn.

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When notified of Jasmine's response-- Lindsay simply wrote to RadarOnline.com:

"Hahahahahahahahaha"

The root of the apparent tension between the pair is reportedly a three-way love triangle between Lohan, Waltz and British rugby player Danny Cipriani.

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Cipriani was partying alongside Lohan at her birthday bash and is reportedly also a former flame of Waltz.

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Lindsay also exclusively told RadarOnline.com "She'll (Jasmine) never be as pretty as Megan Fox - who apparently she says she 'looks like.'"

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Who's going to throw the next punch? Stay tuned.