I can offer no explanation for why, except that he was enthralled by the concept of them from his first encounter.
He loves words, so I guess it makes sense that words that mean other words are going to be particular favorites.
Today, on the way to lunch, M asked to stop to "powder his nose." We were almost there, so I told him he only had to hold it for a couple of minutes.
His eyes darted to both sides and he lowered his voice.
"You mean hold my... powder?"
Moments like these are what make parenting the best job in the world.
I could die from cuteness. Excuse me, "pass away".