look up any word, like twoosh:
 
15.
When you cup your hand around a fart and enclose the hand around your friend's, girlfriend's, or any number of people's nose and mouth.
Yo bro, you just got gas masked, and it smells terrible.

Aww man, I just got gas masked.
by Greg April 24, 2004
 
16.
The act of sitting on the woman and putting a testicle on each eye and your butthole on her mouth. The man then procedes to fart in her mouth and suffocate her until death. The man then chops her up into little peices and put in a trash bag which goes in the dumpster.
Dude, i have to escape the country cuz i just gave Josie a Gas Mask.
by billy Biggsbee June 29, 2010
 
17.
While receiving a blow job, just before climax, a man turns quickly and farts in a females face and spins back and cums on her face to mask in the scent
*fart noise, followed by ejaculation*
"POW! Gas Mask."
by Berkson October 04, 2008
 
18.
when you capture your fart in your hand and put it on someones face
"last night i gas masked my friend. he had to smell my fart.
by holio March 04, 2008
 
19.
When a girl is laying on her back and you're facing her feet, you squat and teabag you're balls in her mouth and fart in her her face.
My girl spilled wine on the rug and while she was cleaning it up and I flipped her over and gave her the gas mask.
by bob and ric December 25, 2004
 
20.
A type of foreplay. When a male farts in a females mouth. The female then blows the fart back into the males mouth and make out.
"Oh man, I gave her a gas mask last night!"
by Freygod 2009 July 10, 2008
 
21.
Where you sit on some chicks nose and fart. Then your stank ass shit blows right into that bitches lungs.
Vince gave Tracy a gas mask and she loved it! Every time vince has got to fart tracy says, take off those pants and sit on my face.
by Griz October 30, 2004