A jealous person will approach an evil witch doctor, shaman or Sangoma to take vengeance on someone they have some issue with. They would have to promise the soul of a loved one but cannot choose who, the Tokoloshe chooses the soul it decides to take. The witch doctor first needs to locate a dead body to be possessed. They must pierce its eye sockets and brain with a hot iron rod, so that it cannot think for itself and obeys only its master. They then sprinkle a special powder and shrink its body. It is then let loose to terrorise its target. Weeks, months maybe years later, the Tokoloshe will take its payment of the soul of the clients loved one.

"Some Zulu people (and other southern African tribes) are still superstitious when it comes to things like the supposedly fictional tokoloshe—a hairy creature created by a witch doctor to harm his enemies (also … known to bite off sleeping people's toes)."
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According to legend, the only way to keep the Tokoloshe away at night is to put a few bricks (2m high) beneath each leg of one's bed. However, this will not protect anything but the person whose bed it is along with the bed itself, as it may instead cause havoc not involving said people.

The advent of the phantom Tokoloshe came about through indigenous Southern African folklore to explain why people inexplicably died while sleeping in their rondavels at night. Traditionally, these people slept on the floor on grass mats encircling a wood fire that kept them warm during sub-freezing cold winter nights on the highveld in the rarefied air. They never realized the fire was depleting the oxygen levels, leaving noxious carbon monoxide, which is heavier than pure air and sinks to the bottom. Eventually it was realized that anyone who happened to be sleeping in an elevated position escaped the deadly curse of Tokoloshe, which was described as a short man about hip high who randomly stole one's life in the night unless they were lifted to the height of their bed.

Dankie, title is complete

Oh good, I was starting to think I was missing out on something

This poem is me to a tea...

This is the prime of my life.
I'm young, hot, and full of the way I love
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Yeah, these are fun, and sometimes full of surprises

Dankie, title is complete

I am now :D

A lot more to read about them here: https://en.wikipedia.org/wiki/Draugr

Unlike Kárr inn gamli (Kar the Old) in Grettis saga, who is specifically called a draugr, Glámr the ghost in the same saga is never explicitly called a draugr in the text, though called a "troll" in it. Yet Glámr is still routinely referred to as a draugr.
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Beings not specifically called draugar, but actually only referred to as aptrgǫngur (‘revenants’, pl. of aptrganga) and reimleikar (‘haunting’) in these medieval sagas are still commonly discussed as a draugr in various scholarly works, or the draugar and the haugbúar are lumped into one.
A further caveat is that the application of the term draugr may not necessarily follow what the term might have meant in the strict sense during medieval times, but rather follow a modern definition or notion of draugr, specifically such ghostly beings (by whatever names they are called) that occur in Icelandic folktales categorized as "Draugasögur" in Jón Árnason's collection, based on the classification groundwork laid by Konrad Maurer.

Draugar live in their graves, often guarding treasure buried with them in their burial mound. They are revenants, or animated corpses with a corporeal body, rather than ghosts which possess intangible spiritual bodies.
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Old Norse draugr is defined as "a ghost, spirit, exp. the dead inhabitant of a cairn". Often the draugr is regarded not so much as a ghost but a revenant, i.e., the reanimated of the deceased inside the burial mound[3] (as in the example of Kárr inn gamli in Grettis saga).
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The draugr was referred to as "as barrow-wight" in the 1869 translation of Grettis saga, long before J. R. R. Tolkien's employed this term in his novels, though "barrow-wight" is actually a rendering of haugbúinn (literally the ‘howe-dweller’), otherwise translated as "barrow-dweller".

The draugr or draug (Old Norse: draugr, plural draugar; modern Icelandic: draugur, Faroese: dreygur and Danish, Swedish, and Norwegian: draug) is an undead creature from the Scandinavian saga literature and folktale.
Commentators extend the term draugr to the undead in medieval literature, even if it is never explicitly referred to as that in the text, and designated them rather as a haugbúi ("barrow-dweller") or an aptrganga, literally "again-walker" (Icelandic: afturganga).