1)When one rips ass and is holding back a shit.

2)When one releases anal bio-hazardous gas while the need for a large fecal evacuation is in order.

3) The second most deadly type of fart behind only the infamous shower fart.
We were sitting playing some video games and he was just farting through fecal, it was lethal.

Dude go take a shit you're FTF'ing
by Cent2Crew March 26, 2009
Get the Farting Through Fecal mug.