A gender reveal party reportedly ended with a wild brawl outside an Ohio Applebee’s when customers and staff argued over who was responsible for cleaning up confetti.

Cops responded to the Applebee’s Grill and Bar outside Cleveland on Monday after a fight that began when the group was told not to use confetti poppers inside the establishment, according to WJW-TV.

The manager had notified the group of about 20 to pop the confetti outside so that other customers would not be pelted by the decorative paper, the network said.

But when the blue confetti was blasted all over the restaurant’s sidewalk and cars — the manager asked the group to clean up the litter.

That’s when the partygoers started yelling and throwing menus at employees, the manager told the network.

Some of the party members began screaming, “I’m going to beat your a–” and telling the hostess they were going to “f– you up,” the hostess claimed.

They also allegedly failed to pay a bill of $31.81.

It was unclear whether the group of 20 paid any other bills at the restaurant that night.

The restaurant released a statement that said it was “an unfortunate incident.”