The sexual act of one sitting on their partners face with the anus covering their mouth, and passing as much gas as inside your body. The victims nose should be squeezed shut so he/she has to breathe it all in through their mouth. Also, some variations include the excrement of faeces into their mouth.
Husband: Shut up woman, and make me a sandwich, otherwise I'll Gas Chamber you later tonight, capiche?
Wife: Oh please no!
Wife: Oh please no!
by chezmonger August 03, 2010
When you fart in an elevator and walk out just as someone enters and the doors close before they have any chance of escape. Much like the dutch oven, it will render your victim helpless and paralyzed.
As she was leaving the building, Sarah gave yet another victim an unexpected gas chamber.
by The Spot Formerly Known as G August 01, 2007
The act of performing a dutch oven, alone, and then masturbating in said dutch oven
Yeah man I caught Baker doing a gas chamber the other night. His room smelled like a Shoney's for weeks.
by FartSammich October 30, 2011
Farting while in an enclosed space, such as an elevator, where you victim(s) cannot escape in a hurry. This forces those that are trapped to breath in the odor until it is possible for them to leave.
Once at 2:00 in the morning at the airport I was stuck on an elevator with a young couple and their single, misbehaving crotchfruit who would not stop bumping into my broken arm. Being already pissed about having to travel internationally without much warning from my boss, I decided to get back at them by turning the elevator into a gas chamber just as I arrived at my floor. With the child's face being about ass-height, I felt quite satisfied after.
by Cripple Chris October 23, 2010
Right before sex (during foreplay) you fart in a condom and stretch it around your partners head (at least to the nose).
Dude, I has my girl the gnarliest gas chamber last night.
by Obes Obeltons January 21, 2014
When a girl is giving a guy a blowjob, and he farts in her face.
Dude, this chick was giving me a blowjob and I then I put her in a gas chamber
by yeahbuddy1234 February 22, 2011
Similar to the dutch oven. However, this can also be with oneself. Basically, that moment when you fart in the shower and it smells like hell.
"Dude, I was taking a hot shower last night when , all of a sudden, it was like a gas chamber in there. I almost died.
by Baby-eater. December 03, 2011
Farting in an enclosed space either by yourself or with others.
"I nearly passed out when I gas chambered the shower stall" "Man, I just gas chambered the elevator on the way up"
by chillax_ October 13, 2009