When children use the need to go to the bathroom and make a deuce as an irrefutable excuse to get out of bed at night.
"We were all set for an 8pm bedtime, but both kids used the poophole loophole, so it was more like 9:30."
The logic that allows girls who are saving their virginity for marriage to instead have premarital anal intercourse.
Typically the boyfriends of such girls will convince them that, if they take it in the ass and don't pop the cherry, they're still pure and virginal.
Guy 1: "I'm bummed because this hot chick I dated is saving herself for marriage."
Guy 2: "Just explain the poophole loophole to her and you'll score for sure."
Chick: "Thank goodness for the poophole loophole. Now I can honestly tell God and my parents that I am a virgin."