A troll is a member of a race of fearsome creatures from Norse mythology. Originally more or less the Nordic equivalents of giants, although often smaller in size, the different depictions have come to range from the fiendish giants to a devious, more human-like folk of the wilderness, living underground in hills, caves or mounds. They are often regarded as having poor intellect (especially the males, whereas the females may be quite cunning), great strength, big noses, long arms, and as being hairy and not very beautiful. Today's modern troll can often be found living in his mother's basement.
Thanks to http://en.wikipedia.org/wiki/Troll (5 years and 2172 days ago)