T.P. & P.Q.
After school, C and P were eating their snacks, when C suddenly remembered that we needed to stop by the supermarket on the way home. "We are out of P.Q., Aluminum foil and wine vinegar," she said, while sucking liquid apple sauce from a Pom' Potes packet.
"P.Q.?" I asked. "What is that?"
"Oh, you know, P.Q. Toilet paper. We call it P.Q. for short."
"Oh. We call it T.P. Toilet Paper. What does P.Q. stand for?"
"P is for paper, and Q stands for cul.
"Isn't that word kind of, um, impolite?
"No, not at all! It's fine! Everybody says it. I say it to my Grandma," she answered.
Then she thought for a minute.
"Oh. Um, I guess it is. Impolite. But we say it anyway!" She grinned, and we headed into the store.
*****UPDATED: First, the "cul" thing is likely right, BUT--
Did ANYONE click the link and find another alternate meaning for "queue"??????
There is another one you may not have thought of!
Though yours is more likely the correct one. French spelling, not always my forte.
Isn't it interesting that we are arguing about potty mouth?