Fecal Alcohol Syndrome is the "scientificated" term for a phenominon usually referred to as the "beer shit
A Beer Shit is the unique bowel movement one experiences after a night of heavy drinking.
This term is cheeky because it sounds sort of like "Fetal Alcohol Syndrome" which is a tragic condition indicative of a pregnant mother's consumption of alcohol during pregnancy.
Hey Jen, Ann...I'd stay out of the bathroom last night. We drank a case of High Life Light and I have the world's worst case of Fecal Alcohol Syndrome.