A childhood belief about speaking

I once thought that I invented the word "buoy". At the time I hadn't learned to spell very much, so I would have been more likely to spell it "booey" or something like that. On my family's first trip to the beach since I came along, as we were nearing the shore, something possessed me to say, "We'll see booeys at the beach!" Maybe I had heard of buoys but forgotten, but something subconsciously prompted me to say that. But I thought at the time I was purely making it up. Once at the beach, I'd point to all sorts of unfamiliar objects, and ask, "Is that a booey?" At first my father would say "Yes" to my question for whatever I pointed to. For a while I supposed he was just going along with my game of making up the word. The first time I remember him saying "No," we were on a ferry ride, and I'd asked the question within the hearing of the ferry operator. In retrospect, I guess my father didn't want the ferry operator to hear him telling me something was a buoy that wasn't. Before the ferry ride was over I was having actual buoys pointed out to me. Gradually I learned to use the word only for real buoys. But for a long time I thought that perhaps they were never called "buoys" until I "invented" the word.