The sphincter, a.k.a. butt hole, when gas or shit or both are blowing out of the ass either due to the need for immediate pressure relief or a necessary bodily function. Use of the Purge Valve may often satisfy both.
Gary went to the all you can eat Chinese Buffet where he consumed a massive amount of beef and broccoli for dinner. A few hours later he was so bloated air began forcefully blowing out of his Purge Valve. He soon felt relief and his pants weren't so tight.
34👍 9👎