Shmalexiberoth is a high demon, belched out from the very bowels of hell to terrorise the county of Somerset with his disgusting fashion sense and his even more disgusting breath. His demonic powers include paralysis by breathing, mumbling incoherently at people, and trying to kill them by snapping their necks. Can easily be exorcised with holy water, or, failing that, a firecracker or two.
Oh my god! He just flew out of his chair in a demonic fashion! He must be the high demon Shmalexiberoth!