Julenissen in Norway, so the yule gnome more or less. Not to be confused with låvenissen, who lives all year in the granary of the farm and is given porridge for Christmas. Some people, especially those living on farms, are visited by låvenissen instead of julenissen on the 24th.

Låvenissen is a trickster, and when things are missing around the farm it's probably his fault. But unlike the people living under ground (de underjordiske) he's not a scary fellow, and he deserves a little treat for Christmas like everyone else.

I get that it's completely unrelated etymogically, but I like how close manden is to mandem. It's the Yule mandem. Santa is, in fact, about a dozen London lads