when a guy give a chick/guy(depending on his sexuality) a tea bag and then sits on his/her face and farts in his/her face.
james: hey jamie, why do you have pink eye?
jamie: josh gave me a european gasmask :/
james: oh...... :/ *awkward*
jamie: josh gave me a european gasmask :/
james: oh...... :/ *awkward*
by two dollar cherel February 17, 2011
after sex, the guy stretches the vagina or rectum of their partner over their mouth and nose and suck out their own ejaculate...
When thir long session ended, Leroy pulled Samantha's Vagina over his mouth and gave her the best Gasmasking she had ever had.
by wolfsbane6654 May 10, 2011
After Max released a monstrous and Gervy fart, we all had to start gasmasking or we would have all died.
by dsmueller November 25, 2014
by Dan and Evan August 1, 2017