Mitt Romney took his presidential campaign to the next level on Thursday, eschewing mud slinging to instead engage in the far more delicious smear tactic of pizza slinging.

You know that old prank where you send a bunch of pizzas to someone who never ordered them? Well that’s sort of what Mitt Romney did during a campaign stop in Chicago, sending the leftovers from his meal to Obama’s campaign headquarters.

Romney announced his prank via Twitter, complete with a picture of a delivery guy about to set off with the pies.

Great deep dish at @ginoseast. Sending the extra slices to @barackobama and his Chicago HQ team

Romney did not elaborate on why he sent the leftover pizza to team Obama. (Revenge, like pizza, is a dish best served cold? Redistribution of wealth?)

A call for comment made to Romney’s campaign was not immediately returned.

According to ABC News, a campaign spokesperson confirmed that the pizzas were really delivered.

Late update:

Gail Gitcho, Romney’s communications director, told TPM in an email that it wasn’t a prank at all.

“No prank – just a nice gesture since we were just a few blocks away from their HQ yesterday and had extra pizza,” she wrote.

Additional reporting by Susan Crabtree