Malsumis (sometimes Malsum or Malsom) is thought by some to be the highly malevolent spirit or god of chaos in Abenaki mythology, an Algonquian people of northeastern North America.
A passage of note that highlights discrepancies between popularized and arguably authentic versions of this myth: Now the great lord Glooskap, who was worshiped in after-days by all the Wabanaki, or children of light, was a twin with a brother.
But the evil Malsumsis thought himself too great to be brought forth in such a manner, and declared that he would burst through his mother's side.As compared to an account offered by Gabriel Acquin—one of the two Maliseet sources that Leland had at the time he wrote his rendition of the Gluskap-Malsumis story—Leland's makes a concerted effort to paint Malsumis as explicitly malicious.
In Bleach (S) Abridged by Project Mouthwash (a Canadian multimedia entertainment studio), Malsumis is referenced frequently by the character Chad.
The earliest example of what is the work of Malsumis includes an elaborate explanation in episode 2 regarding bees that are trapped in a cheesecake and might be either alive or dead from poison.