Lindsay Lohan mixes Pepsi and milk in new Christmas ad

Introducing: Pirk!

On Thursday, Pepsi debuted a new Christmas-themed ad campaign.

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“Good,” Lohan says, dresses up as Santa, and pours a can of Pepsi into a glass.

Then she took out a glass of milk and started pouring it into her Pepsi.

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Rohan then sticks a straw into the concoction to take a sip.

“Pepsi and milk,” she said, thinking for a moment before pausing. “Pirk!”

After tasting the drink, she added, “Hmm, that’s dirty soda.”

Olivia Rodrigo popularized “dirty soda” in an Instagram post last year, where the recipe sold by Swig involved mixing the soda with creamer, flavored syrup and lime juice.