Goofballsiness.

Word suggested, just now, by me, upon reading the draft of an email that contained the world "goofballery." Google turns up nothing on a search for "goofballsiness," whereas there are close to 3,000 hits on "goofballery." But, clearly, "goofballsiness" is the better word. Please, everyone. Start using the useful word "goofballsiness." And remember: Althouse coined it.