Vaginal flatulence

Vaginal flatulence (flatus vaginalis in Latin) is an emission or expulsion of air from the vagina, often during or after sexual intercourse or (less often) other sexual acts, stretching or exercise. The sound is somewhat comparable to flatulence from the anus but does not involve waste gases and thus often has no specific odor associated.

More serious conditions
Vaginal gas that involves strong odor or fecal matter may be a result of colovaginal fistula, a serious condition involving a tear between the vagina and colon, which can result from surgery, child birth, diseases (such as Crohn's disease), and other causes. This condition can lead to urinary tract infection and other complications. A doctor should be consulted if symptoms of colovaginal fistula occur.

This can also be a symptom of an internal female genital prolapse, a condition most often caused by child birth.

Air which is forced into the vagina, especially by blowing in order to cause vaginal flatulence during cunnilingus, can cause an air embolism. This is a potentially life-threatening condition for a woman and also for her child if she is pregnant at the time.

Slang
Queef (onomatopoeia), pussy fart, and vart are slang terms which refer to vaginal flatulence. The term fanny fart is also commonly used in Britain and Australia. .

Pornography
So-called "queefing" can also be considered erotic and is the subject of a pornographic sub-genre, as for example in the movies of Amber Rose.