Just some more about that bizarre word.

Tatterdemalion is a fictional character and Supervillain in the Marvel Comics universe, who wore gloves either coated with or secreting a chemical agent which dissolved any material composed of paper, such as dollar bills. His appearance suggested that he was homeless, and he was apparently insane, which presumably explains why he would want to destroy currency.

The Tatterdemalion King is also another name for Hastur.

Hastur The Unspeakable One, Him Who Is Not to be Named, Assatur, Xastur, or Kaiwan). is a fictional character in the Cthulu Mythos. Hastur first appeared in Ambrose Bierce's short story "Haïta the Shepherd" as a benign god of shepherds. Robert W. Chambers later used Hastur in his own stories to represent both a person and a place associated with the names of several stars, including Aldebaran. (weirdy stuff)

But in Francis Grose's 1785 "The Vulgar Tongue" (Buckish Slang and Pickpocket Eloquence) Tatterdemalion features under T as:

Tatterdemallion (two l's). A ragged fellow, whose clothes hang all in tatters.