Google the word "Fustration" and Google lets you know that there is no such word and directs you to links for "Frustration". As I type this, the spell check lets me know in no uncertain terms that "Fustration" is not a word by putting a nice red line underneath it. If this is true, then why do I keep coming across people who pronounce it without the first R?
I first came across this while watching Little People, Big World. While I love Amy Roloff, I am constantly annoyed by her use of the word "Fustrated". Evidently it is one of her favorite words because she uses it all the time. Since hearing Amy say it, I have become more sensitive to hearing it, and now I seem to hear it all the time.
Let's ban together and spread the word that "Fustration" isn't a word. Let us start a "FRustrating" movement!