A vagina that expels air pumped into it during intercourse in a loud flatuelent manner.
I have such a fart box after Tony and I do it doggy-style. It's so embarrassing!
by min December 15, 2004
The rectum, anal entrance.
Roxi's fartbox is well used and very loose.
by Dennis Halsey February 07, 2003
anonther word for anal cavity.
i am gonna piss in your fart box if you dont straighten up bitch!
by james jackson January 27, 2006
a woman's anus used in sexual relations
by the420crew August 27, 2010