A type of person who is loving and caring, and always knows the right thing to say. She's a bit crazy but in a good way, You would love to have a fulvia in your life.
Ex: Did you see that gifycat link everyone on the Mariner's subreddit kept posting to distract from their despair and damage they're doing to their livers? It ends it "IndellibleThankFulgar"
According to Norse mythology, when humanity was created, the fate Urd gives every human a being called Fylgia at birth which is to follow him/her throughout his/her life.