I’ve been familiar with the term portmanteau for a while, although it had never occurred to me until this moment that, with my own personal tendency to combine words (at least in my head; I usually have the wherewithal to keep the results to myself), this is in fact what I am creating. (I had been carelessly and, knowing I was misusing the word, with some hint of regret referring to these habitual creations as puns.)
Certainly I do not have Mr. Dodgson’s gift for them, but still, it’s interesting to consider the potential of such hybrid words.