Used to describe the scent eminating from a man's ass who obviously has a serious medical condition. Also a by-product of irritable bowel syndrome, this condition can also lead to sharting.
A descriptive for a terrible smell. Often "wide open ass" is used to describe a geographical place. Less often it is used to describe the stench of a person.
Term used when someone walks unknowingly into an area where someone has just crop dusted with their mouth open. Leaving the person feeling as though they had just been stabbed in the face with someone's ass matter.
Bob wondered who open ass face shanked him in aisle 3 of the grocery store.
Bill thought farting in mary's cubicle would be a funny open ass face shank.