Why does "frindle-mania" disappear in the book Frindle?
"Frindle-mania" disappears in the city of Westfield because the word frindle has been accepted by the majority, and it is now commonplace. In Chapter 13, the author says,
"All the kids and even some of the teachers used the new word. At first it was on purpose. Then it became a habit, and by the middle of February, frindle was just a word, like door or tree or hat. People in Westfield barely noticed it anymore."
Across the country, however, where the word is still new and revolutionary, "frindle-mania" is alive and well -
"In hundreds of little towns and big cities from coast to coast, kids were using the new word, and parents and teachers were trying to stop it. What had happened in Westfield happened over and over and over again."
Change almost always brings conflict, and when a new word is introduced, there is confusion, as some want to adopt it and others stand adamantly against it, creating a kind of "mania." Eventually, the controversy wears itself out, and the word either disappears, or is used so frequently that people barely notice it anymore, signalling the end of the "mania." If the new word is accepted widely enough, it eventually makes its way into the dictionary.