fectoral

The skin that directly surrounds the asshole. Its that rinkly section before it gets smooth again.

I hate it when i take such a large crap that my fectoral hurts from the stretching.

fectoral by The Ghost of Fanwood February 24, 2007

Factoral 

Used when you want to sound smart to dumb people who don't realize that that is not an actual word.

The factoral of the day is that pandas do not enjoy chinese food.

Factoral by zackswordsoftheday June 18, 2011