Open wounds in the skin. Usually gaping and the source of a nasty odor, they usually occur on or around the anus and buttox areas. See George W Olson for an example.

A cut inside your anus. A.K.A. "Butt hole cut"

Caused by the stuffing of bananas up the anus.

Often experienced by veteran porn actors. e.g. Bree Olsen, Carmella Bing, Gianna Michaels, Flower Tucci.