1. A fart that doesn't quite make it all the way out.
2. A fart that is so explosive, after the initial release, the anus remains open briefly allowing external air to enter the rectum.
3. A fart that if it had not been muffled by a wooden bench, or 70's style fiberglass chair, would've been extremely loud rather than shaking a city block 6.9 on the Richter scale.
"Damn, that bowap made the glass explode from the windows"
The most foul and disgusting epithet a person can bestow on another, as it is foul and disgusting in and of itself.
The most rancid of all pussy farts, in both sight and smell.
You're nothing more than a festuring vaginal blood fart.