Muscle of the anal opening. Can be easily ruptured through violent anal sex.

The seal around a person anus.

1. (slang) sphincter
2. (normal) a rubbery gasket used to seal a connection between two pipes. The o-ring is squished between two flanges, forming an air-tight seal.

your brown eye, bunghole, or the muscle that holds your turtle head in.

Anal muscles.

use your phone to record a girl orgasming while you're having sex with her, then set that recording as her personal ringtone when she calls you.

a round seal, often made of neoprene or some other compressible "rubber-like" compound, that is an industrial part.Looks like the part of a condom that unrolls before you actually unroll it. Can be used as a cock ringif you get the right size