To thumb your nose at someone is a slightly
milder version of giving them the middle finger
Mark Twain liked satire. In 1862, when he was 27 years old and still went by his given name Samuel Clemens, he wrote a blurb for the
Territorial Enterprise newspaper. In it, he attacked two things: One, he disliked the then-common fad of journalists writing about hoax "petrifactions" where a body was found to have turned to stone; and Two, he wanted to make fun of a real person he despised named Judge Sewall, a local coroner and Justice of the Peace.
Many newspapers reprinted his story. They knew it was a hoax, but since it was a good one, they published it anyway, since readership was more important than the literal truth, although some did leave clues so readers could be in on the joke.
Twain was hoping that readers would reconstruct the position he described of the petrified man's hands, and the joke would have been clear.
It would have been a bit more obvious if the original
story had included an illustration of the stone man
making this gesture of contempt.
Overall, the story failed as satire. Twain hoped for the reader getting the joke. Instead he perpetrated yet another realistic-sounding petrifaction hoax.
Samuel Clemens may have encountered the "thumbing the nose" gesture used as a joke before, in a book called
Percival Keene, written in 1842 by naval officer Frederick Marryat. In it, the main character, Percival, pulls a mean practical joke on a fellow shipmate.
Below, you can read the original
Petrified Man satirical short, Twain's response to the story in
Hoaxing the Unsuspecting Public, and an excerpt from
Percival Keene where Percival explains to a "Green" seaman that "thumbing the nose" is a secret freemason gesture to be given to your superior officer...
Another stone man hoax story is at my post:
The human petrifaction of Ernest Flucterspiegel>>