Driving through America’s heartland, the inviting scent of eau de methane gently wafts into our nostrils.
by Dr Bunnygirl August 08, 2019
Farts that can often leave residue, often in the form of streaks, which can cause a wet muddy feeling between your ass cheeks.
Hey slut! Bring me a dish towel so I can clean up my muddy methane. Now, eat my asshole out you fucking asian cum whore.
by AmichaelG1 January 09, 2010
When you have so much air pressure in your intestine that your bowls begin to retract causeing an imbigulously involuntary extraction of fecies into the lavoritory causing the dihydrogen monoxide to be intercalated into your rectum.
Doctor: your son will not be living much longer.
Parent: why?
Doctor: im sorry to say that he... he(sigh).. he has undergone the Reverse-methane process.
Parent: thats to bad. i guess.
Parent: why?
Doctor: im sorry to say that he... he(sigh).. he has undergone the Reverse-methane process.
Parent: thats to bad. i guess.
by Rolf M Nate G May 28, 2005
by gimpfeet April 01, 2009
by Roc.g.forgione@gmail.com August 28, 2015
When you drop your drawers and bare-ass fart into your sleeping friend's open mouth as they are breathing in, causing them to jump awake and spit.
Dude, John is passed out with his mouth wide open. You should go and give him a methane mouthwash and see how fast it makes him stop snoring!
by Mr. Led Zeppelin March 21, 2020

