Good afternoon, folks! This is my first post—glad to be joining you all, and please forgive me if this already well-trodden ground. I was messing around with an anagram decoder earlier today, and realized I had never tried rearranging "Humbert" before now. Turns out I could have seen "thumber" hidden in there pretty easily if I just took out the space and wrote Humberthumbert, but hey, no use crying over spilled milk.
Someone on Goodreads pointed out a couple of passages where Humbert's thumbs are highlighted (I found it interesting that the two passages they included juxtapose phallic thumbs with wounds, and I'd like to look further into whether that juxtaposition carries over into other parts of the novel as well); there are two other connotations of "thumber" that I'm curious about, as well. First, a book-thumber, someone who thumbs through a book rather than reading it thoroughly—this seems appropriate for the incurious HH and his tendency to gloss.
Second, a hitchhiker, who sticks their thumb up to catch a ride (I think this is the only dictionary definition for "thumber," actually)—there's a passage in Part II Ch. 2 (page 159 of the Appel annotated version) that reads as follows:
We came to know the curious roadside species, Hitchhiking Man, Homo pollex of science, with all its many sub-species and forms: the modest soldier, spic and span, quietly waiting, quietly conscious of khaki's viatic appeal; the schoolboy wishing to go two blocks; the killer wishing to go two thousand miles; the mysterious, nervous, elderly gent, with brand-new suitcase and clipped mustache; a trio of optimistic Mexicans; the college student displaying the grime of vacational outdoor work as proudly as the name of the famous college arching across the front of his sweatshirt; the desperate lady whose battery has just died on her; the clean-cut, glossy-haired, shifty-eyed, white-faced young beasts in loud shirts and coats, vigorously, almost priapically thrusting out tense thumbs to tempt lone women or sadsack salesmen with fancy cravings.
"Let's take him," Lo would often plead, rubbing her knees together in a way she had, as some particularly disgusting pollex, some man of my age and shoulder breadth, with the face à claques of an unemployed actor, walked backwards, practically in the path of our car.
The thing that jumped out to me here was how close pollex sounds to Pollux, twin half-brother to Castor, coinciding perfectly with the Quilty reference in the second paragraph. But I definitely think there's more I should be pulling out of this passage and this thumber-hitchhiker thread in general. I plan on looking into this further in the future, but I would love to hear other people's thoughts on the matter! :)