Rumpelstiltskin

A fairy tale from the collection of the brothers Grimm. The title character, a dwarf, tells a woman who has promised him her first-born child that he will not hold her to her promise if she can guess his name. She finds it out, and Rumpelstiltskin, furious, destroys himself.

The noun has one meaning:

Meaning #1: a dwarf in one of the fairy stories of the brothers Grimm; tells a woman he will not hold her to a promise if she can guess his name and when she discovers it he is so furious that he destroys himself