The act of a man having sex with three women at the same time, while one of each of the women has blonde, brunette, or red hair. The blonde may be replaced with a geriatric white-haired woman as well. The involvement of a black girl instead of a brunette is a Dirty Neapolitan.

The act of fuckin a chick's butthole then inserting your poop covered dick into her period blood spewing vagina and ejaculating.

To start, you must find a drunk slut on her period. you then must do her in the ass, making sure to get a good amount of shit on your dick. Then slip the dick into her pussy for a bit, getting some nice blood on it. Then put your dick in her mouth and blast a major cumload inside her mouth. If done properly, when she opens her mouth you should be able to see Brown, Red, and White, the colors of Neapolitan Ice Cream.

When a person is penetrated in the anus by two penises at the same time until their rectum bleeds. Then their anus is licked. It is The Neapolitan because there is blood, semen and poop.