This is also why I like Wikipedia

[HumblePie]

The noises commonly associated with flatulence are caused not by a flapping of the buttocks, as commonly thought, but by the vibration of the anal opening. The sound varies depending on the tightness of the sphincter muscle and velocity of the gas being propelled, as well as other factors such as moisture and body fat.

Flatus is brought to the anus in the same peristalsis method as feces, causing a similar feeling of urgency and discomfort. Nerve endings in the rectum learn to distinguish between flatus and feces, although loose stool can confuse these nerves.

 

[Pepsi90919]

in soviet russia, wikipedia liks you

 

[akubi]

how enlightening...

 

[HumblePie]

In social situations where the sound of flatulence would be particularly inappropriate a temporary remedy can be obtained by placing a piece of cotton wool or paper tissue about 4 cm in diameter onto the anus. If this is done whilst squatting then closure of the buttocks will hold it in place for a considerable period of time. This keeps the anus dry and reduces the velocity of the gas discharge, both of which help to prevent noisy events.

For acute situations, it is recommended to spread the buttocks, so as to stretch open the sphincter while the gas is passed. This is best accomplished by sitting on one buttock, shifting body weight laterally, then putting the body weight on the other buttock. The opening will not snap shut and the passage will be silent. If done incorrectly, however, this may result in a characteristic high-pitched squeal.

If sitting on a cushioned surface, the gases can be directed into the open-cell polyurethane foam and somewhat quarantined. Following the fart, standing will not release the odor, in fact, the gases will be further pushed to the center of the cushion. The gases will leak out and not be detectable, unless the cushion is compressed again under the weight of another person.

 

[Lazy8s]

haha that's awesome.

The other day we wik'd pwn and just about died laughing

 

[iwantanewcomputer]

Originally posted by: Pepsi90919
in soviet russia, wikipedia licks you*

sounds kinky

*typo fixed

 

[Hossenfeffer]

Heh, hilarious!

 

[nakedfrog]

Originally posted by: HumblePie
The noises commonly associated with flatulence are caused not by a flapping of the buttocks, as commonly thought, but by the vibration of the anal opening. The sound varies depending on the tightness of the sphincter muscle and velocity of the gas being propelled, as well as other factors such as moisture and body fat.

Flatus is brought to the anus in the same peristalsis method as feces, causing a similar feeling of urgency and discomfort. Nerve endings in the rectum learn to distinguish between flatus and feces, although loose stool can confuse these nerves.

Heh... what's really sad is that I was looking at that exact same page earlier this week.

 

[Runes911]

If done incorrectly, however, this may result in a characteristic high-pitched squeal

OMG I hurt myself trying to hold back laughter at work just now