The "Anal Myth" refers to the idea that certain low-fat or non-fat oils can cause diarreah, stains in underwear, or anal leakage.
"God, how can you eat those chips? You know they can cause loose stools and other problems?!"
"No way, THAT'S AN ANAL MYTH!"
"No way, THAT'S AN ANAL MYTH!"
by booshankyjohnson August 7, 2006