A witch bottle is a bottle that is filled with various ingredients such as urine, nails, pins, needles, broken glass, hair clippings, fingernail clippings, blood, herbs, stones, etc., which is often buried on a person's property in the belief that such will ward off evil and protect the owner from witchcraft.
In modern times, a witch bottle has also come to mean any spell involving ingredients sealed up in a bottles. Such spells are performed today by practitioners of various magical traditions.
The Witches Bottle
17th century urine-filled 'witch bottle' found