A condition where a person has to fart so bad they become erect; A condition where a person has such a satisfactory fart they become erect.
"Dude, I just shit my pants. I think I have a fart boner."
"Oh man, I'm going to shit my pants. I'm getting a fart boner."
"Oh man, I'm going to shit my pants. I'm getting a fart boner."
by Jake Adams October 22, 2007
by Jake Adams October 22, 2007