This little number is where you make your hand into a cup shape and fart into it. Close the cup(your hand) and put it over an unsuspecting persons face. The look on their face not only from not knowing what the hell your doing and the awful smell with be a sure win for making you laugh.
by b14ck1c3 August 23, 2006
He held me down and gas masked me. It was disgusting.
I hear that guy is into gas masking, that is not cool!
I hear that guy is into gas masking, that is not cool!
by SilentNine May 02, 2010
The use of one's shirt collar, pulled up over the nose and mouth, to protect one from the stench of a recent fart. May also be pronounced "jayse" mask.
by Irrelevant March 19, 2005
by holio March 05, 2008
A term used to explain oral to anal sex in a very passionate sense, as in when you bury your face in your significant other's ass like it's your last chance at survival.
Dude, did you hear about Scott at that party Saturday? He got so hammered that he started gas-masking Jessica for like, two hours! What a legend!
Have you ever SEEN Kim Kardashian? Of COURSE I'd gas-mask her ass!
Have you ever SEEN Kim Kardashian? Of COURSE I'd gas-mask her ass!
by Iguanareah September 21, 2018
by CJR1009 January 11, 2016
When one splatter farts into a hotel provided shower cap and sneaks up behind a loved one and pulls it around their face like a gas mask.
by The Great Mistini March 30, 2015