Naamankajärvi (according to Google image search).



Naamanka = Lainasana pohjoisaamesta; 'poron sarvia niiden kasvuaikana peittävä karvainen nahka'




Naamanka is apparently borrowed word to finnish from one of the Sami languages. It means the furry leather that covers new reindeer antlers while the antlers are growing. So ummmmm...Lake of freaky fur antlers is the name of the update.