Ketchup Gas

When a girl is on her period and some of the blood drips to her butt hole, then she proceeds to fart, spraying blood to your face.

Dude, Carly does a mean ketchup gas.

by Russian_Privilaged October 31, 2016

Poo Gas

A fart that smells like poop because it passes by the poop waiting to come from your anus.

Dude! Do you have to poop cause you just had the worst poo gas!!!

by Stinky McStink Face February 14, 2010

german gas mask

Sex positon, when you put your balls on the partner's eyes and you fart in their face

Beth was giving me head, and i pushed her down and gave her a german gas mask

by MDGT January 9, 2008

Smoking That Gas

Smoking marijuana (weed)

Guy 1: Bro I'm so high I've been smoking that gas
Guy 2: Wtf is that
Guy 1: I've been smoking weed

by Onnie.Wavy June 13, 2016

Portuguese Gas Pedal

Invented in North Carolina by a non-Portuguese man, it is when you are having sex with a woman doggy style and when she reaches climax you pull out and kick her in the pussy.

"That bitch pissed me off the other night so I lured her into bed and gave her a Portuguese Gas Pedal."

by Tootiemangum March 4, 2005

moist turd gas

A fresh farty fragrance. Funny because it sounds like "mustard gas".

Aaron came over to Jeff's work station and laid down some heavy moist turd gas as a payback for the nasty bean bomb that Jeff had dropped on Aaron just 30 minutes earlier.

by Gregg Loogyanus December 7, 2006

Bohemian Gas Mask

The process of removing a used nut cup from your pants and placing it over someone else's mouth. Best when used to wake another person up while sleeping on a bus.

Trevor fell asleep after a baseball game and got a rude awakening from the Bohemian Gas Mask applied by Josh, but secretly he liked it.

by Beisbolplaya111 May 20, 2006