The Methane Murphy 

When a man is performing oral sex on a red headed woman with a fully developed red bush, just as the woman begins to reach climax she squeezes out a gas whisper in her partners face.

"Dude, I was going down on this firecracker chick and she gave me The Methane Murphy"

The Methane Murphy by James J. Brown March 31, 2009

morning methane 

you know when you have been farting all night in your sleep and you wake up and your room smells like shit,well its called morning methane.open the window you filthmonger.

for fucks sake tom this room fucking stinks what the fuck have you been eating ?

sorry love its only morning methane ,take a deep breath and get rid of it for me .

morning methane by Adam the definer ! June 22, 2015

eau de methane 

The fragrant flatus perfume emitted primarily by cows responsible for hastening global warming.

Driving through America’s heartland, the inviting scent of eau de methane gently wafts into our nostrils.

eau de methane by Dr Bunnygirl August 8, 2019

Reverse-methane process 

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.

Reverse-methane process by Rolf M Nate G June 3, 2005

Muddy Methane 

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.

Muddy Methane by AmichaelG1 January 15, 2010

Methages

Text or email messages sent by people under the influence of methamphetamine or opiates. Usually verbose and frequent.

After Paul partied, he sent a string of methages to his ex.
You better make sure you turn off your phone... you'll get high and start sending tons of methages.

Methages by MikeInDC August 29, 2017

Methan 

The ship name for Megan and Ethan, if both are into science then pronounce it like methane, let all your friends know of this ship and now in chemistry whenever methane is mentioned all eyes will be on this cute couple!

Teacher: bla bla bla Methane!

Literally everyone :*stares at megan and ethan*
-(except jessica bc she's a cunt)

Methan by LordDoggo January 10, 2019