1. An expulsion of air from the anus, accompanied by any quantity of blood.

2. Any amount of blood forcibly expelled from the anus.
Kathy's skirt flapped wildly when she ripped a killer blood fart in the middle of third period gym class.
viết bởi Allah Pinya 11 Tháng ba, 2003
The unfortunate spackling of bloody pooh in ones underwear when attempting to pass gas. This is generally caused by being anally penetrated on a regular basis by large hairy men with names like Bruce or Greg.
Poor old Zink could not finish playing Trivial Pursuit, as he had inadvertantly let a bloodfart, completely soiling the insides of his skivvies. He was secretly relieved, however, as he was losing terribly, as usual.
viết bởi Anonymous 24 Tháng năm, 2003
what happens when I eat too many doritos
Doritos is the number one leading cause of bfs
viết bởi RJ 08 Tháng chín, 2003
When you injure your butt internally in some way, and it causes you to let out some really acrid farts with the faint smell of metal, like there's blood in them.
Ever since I fell off that stool, I've been having the worst blood farts.
viết bởi Alex Stockwell 08 Tháng một, 2008
1. the blood-filled, gassy result of sexual penetration during the period of menstration, usually following the 'doggie style' position
2. the bloody gas expelled from a homosexual butt penetration
Man, he sure blew a huge bloodfart after I came and pulled out of his ass.
viết bởi weasel 10 Tháng hai, 2003
The most amazing, hardcore and non existant band ever!
"Dude, did you see bloodfart last night?!" "Yeah man it was insane!"
viết bởi Steven Goatgaggle 24 Tháng ba, 2013
A bloody, mucus-like, sometimes chunky spray emitted from the vagina after rough sex or from one's anus.
Vaginal bloodfarts are common with promiscuous women, whereas an anal bloodfart can be caused from either homosexual penetration or from an infected, cankered meat vein protruding from one's anus (aka hemorrhoid).
Joey's mom sucks bloodfarts out of pregnant chickens.
viết bởi jayhawk 19 Tháng tư, 2004

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