A small insect, especially one used by a witch as her familiar.
References
“Superstition in Essex: A Witch and Her Niggets”, in Folklore, volume 27, The Times, 1916, page 3
* The niggets were an instrumental defence to the witch and her proceedings as her choice of common spell implemented.
* The mortar and pestal were never idle as nigget after nigget was ground down and dried to powder allowing the witch the ability of common magic and spells inclusive use in all seasons.
billy bob ballsack: so bassically can a=i get a nigget
chashier: excuse me whatd you just call me
billy bob ballsack: give me niggets
cashier: WHAT
billy bob ballsack: its a ver ythin nugget
cashier shot billy, the end.
When your pregnant but didn't now until you go to the bathroom one day. And end up shitting a baby out, but it's such a tiny baby that it looks like a giant turd nugget. And then you flush it and it finds a pile of other shit babies and they make a colony of babies.