A mask purposed for breathing in airborne chemicals. Various masks/series of masks include the GP-5, M85 and M40. Gas Masks were mostly used in WW1 and later became a popular military accessory as chemical warfare is rare.
by Sensei Lenny August 13, 2015

One of the greatest HipHop albums ever.
Apollo Brown produced it, Journalist 103 is rappin over it and it sounds just fantastic.
Every real hiphop head should have a copy.
Apollo Brown produced it, Journalist 103 is rappin over it and it sounds just fantastic.
Every real hiphop head should have a copy.
-What was 2011's best underground-LP again?
-'Gas Mask' by the Left.
-Ah, right, I must have been listening to the radio too often...
-'Gas Mask' by the Left.
-Ah, right, I must have been listening to the radio too often...
by HipHopHead April 15, 2012

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

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 September 14, 2008

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 2, 2010

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
by Berkson January 17, 2009

by J. Rotten October 17, 2017
