A Fart Martyr. Someone who, in the company of others, holds in a fart, causing themselves immense discomfort in order to spare the tastebuds of those around them.
Dramon: I went out with Beccy again last night, saw that new Tarantino movie.
Rick: For real. That shit worth seeing?
Dramon: I dunno man, all I remember is holding in the biggest booty coughs for three damn hours. That shit damn near killed me. Shouldn't have had those burritos for lunch dog.
Rick: Just let that shit out man. No point tryna be some kind of Fartyr. Release and deny bro, release and deny.