My ancestors would first pronounce
aragr, basically accuse him before witnesses of unmanliness. If the unmanliness continued, at the yearly
thing when everyone gathered together, they would pronounce
ergi, and he could defend his manhood in trial by combat or refuse. If he refused, he would be
nithing, essentially soulless, and a danger to the community because any evil spirit could possess him, alternatively and more insidiously, he could be a warlock deliberately
ergi in order to gain
seidr; women's magic. The punishment was typically banishment into the wilderness, which in Skandi land near the Arctic Circle was the same as death, a
nithing among the kin would not be allowed. If somehow the
nithing managed to survive in the wilderness, he would not be harmed, but instead considered to be either under the protection of Odin or a powerful warlock, whom people would seek for black magic spells. But his exile would never be lifted; on pain of immediate death.
There are no records of a homosexual viking in the histories, the songs, the sagas, or the eddas, until the Christians came. And man, does that drive LGBT college history students crazy. Reams of papers have been written trying to prove the Vikings were all in the closet. ;)
Thank you, brave Norseman.
https://www.youtube.com/watch?v=EsCyC1dZiN8