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.
by Allah Pinya March 12, 2003
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what happens when I eat too many doritos
Doritos is the number one leading cause of bfs
by RJ September 8, 2003
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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.
by Alex Stockwell January 9, 2008
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After having intercourse with a female who is menstruating, you then proceed to have anal intercourse. After that is finished, the female may flatulance, resulting in a fine red mist, or a "blood fart."
"Joe was doing this chick in the butt after he fucked her in the puss when she was pms'in it. So she had a blood fart!
by Nathan the freak February 19, 2007
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Profuse rectal hemoraging during flates
Cleofus ripped a blood fart after Uncle Sketer ass raped him
by Clot Gummer December 12, 2008
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The sudden, uncontrolled openening of the sfinchter muscles, letting out an unexpected expulsion of blood from the anus. Like a period, only from another opening.
"I had to crack a rat in the doctors office. It turned out to be a blood fart."
by The Tangible Laugh April 7, 2016
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A blood fart is someone does a shit thats as thick as a coke can causes there upper colen to split and bleed. this is then acompanied by a fart, causeing a fine spray of blood.
Rob did a blood fart on Jais Chest.
by Deathfighta September 19, 2008
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