Tilberi

The lyrics on the Icelandic side are wrong; those are the lyrics to Lágnætti.

A tilberi or snakkur is an Icelandic cryptid. The legend goes that a woman has to steal a rib from a grave on Whitsunday. She then wraps it in wool and takes it to church on 3 consecutive Sundays, spitting the communion wine on it each time. The creature comes alive and does chores for her, as well as stealing milk. The tilberi latches on to the woman's skin and drinks her blood. To get rid of a tilberi, the woman must command it to collect all the sheep dung in a field. After hours of toil, it will explode.

Tilberi legends are popular in the Westfjords region and the few Icelandic female witches who were burned in the 17th century were occasionally accused of making tilberis.