When the sexual parter at the top of sixty-nine sits up on their partners face, and positions their rectum above the face of said partner and rips asshole. Gasmask indicating moisture and particle debris. Sleep well.
"Hey Joe, did you see the video of Brandon giving Ashley a Bulgarian gasmask?"
by joelrose February 08, 2007
when a guy puts his nuts over the eyes of a female and places his penis near the top of the mouth.
Steve gave Cynthia a Bulgarian Gas Mask... She loved it.
by Evan April 19, 2005