A person who willingly takes the blame for a fart when it wasn't theirs, especially to protect the true farter from suffering unbearable embarrassment.
I was with Julie at her swearing in ceremony when she ripped a thunderclap. I quickly became a fartyr for her!
by onehandcrabbing October 27, 2012
Someone who takes the blame for someone else's fart
John knew his wife had ripped an awful fart at the dinner party, and when Dave noticed and called attention to the awful odor, John decided to be a fartyr by apologizing and saying it was he that had farted. FartFartyrMartyrFlatulence
by Jeffblue88 August 01, 2015