Fart echo 

The act of fart smells diminishing, then suddenly coming back, even though only one fart was released. It is a phenomenon caused when the ass vapors bounce off of walls.

I farted in school. The smell lasted for about a minute. After 30 or so seconds, the fart echo came, and it stayed for another minute, giving the people around me a double dose of my stinky stuff.

Fart echo by rogerthewhale April 10, 2010

Diarrhea Echo Fart 

(D.E.F.) That amazing sound that your ass projects against the toilet bowl when you have a backed up shit waiting to immensely emerge from your balloon knot worm hole.

I was sitting on the toilet and almost busted my ear drums from the sound of my diarrhea echo fart hitting the toilet bowl.

Diarrhea Echo Fart by B-Ha Flows December 29, 2011

Does a fart make an echo? 

That is if someone farted and it was loud enough and happened at the right would it make an echo?

One of the unanswered questions of the universe. Sometimes asked by someone who is high on pot etc.

Hey man, does a fart make an echo?

Does a fart make an echo? by The Fury 13 January 23, 2011