when you're wiping your butt, and you check the tp, and are like, how the fuck did the poo get over on that part? i wasn't even wiping there .. so you scavenger around your side cheeks trying to find the culprit, but every time you check the tp, the poo keeps showing up in different areas .. so by the end, you know that no matter what, there is some poo hidin out that's gonna mark up your undies