A great giant of Scandinavian mythology. The god Thor, traveling through the country of the giants, once spent the night in a shelter which turned out to be the thumb of Skrymir's glove. Skrymir joined him on his journey and carried the wallet of provisions, but at the end of the day fell asleep at the foot of an oak tree. Irritated because he could not open the knots with which the giant had tied up the wallet, Thor hit him a terrible blow on the forehead with his famous hammer, but the giant merely asked if an oak leaf had fallen on him.
After sundry other incidents of like nature, Skymir, who was also known as Utgard-Loki, confessed that he had made use of magic illusions to maintain his superiority over Thor.