My husband loves to point out neologisms to me, and recently came up with a good one of his own.
Charley, our always peppy tuxedo cat, likes to run around chattering (this sounds something like “meowmeowmeow, meow mow mrrr mow mow mrr meow” – maybe I’ll attempt to get an audio recording at some point and post it), and occasionally he will let out a caterwaul (usually in the middle of the night). The other day, he seemed to be especially chatty AND caterwaul-y, and my husband said to him, “Charley, stop chatterwauling.” Voila! A neologism.