The look on a woman's face when you fart while she is blowing you. Synonymous with fart frown, shit-gas scowl, or gas grimace.
Super-sized bean burrito... $5.00. The gas shock on her face when you blow down on her while she is blowing you... priceless.
by -HEF- September 20, 2009
Get the Gas Shockmug.