A girl who don't bother to check the adoption records and accidentally marries her bro. Also applies if said girl sleeps with him without checking (aka "elvish marriage"). She may get depression or commit suicide upon discovery of the ugly truth.
My friend was such a Nienor! She just found out from the records that her husband of three years is her brother. She didn't even bother to check before she decided to marry him!
Childishtaunt typically used to express that the taunter is getting away with a sleight against the tauntee in some manner.
Once Jeremy got in the car he rolled down the windows and showed Ron the candy bar he filched from his backpack and shouted 'neener-neener' while rolling away.
A childish taunt or jeer pronounced with a nasal sneer, for lack of a more intelligent retort to someone else's jeer or taunt, usually from a peer. Sometimes sung to the tune of "Ring-Around-the-Rosy" for really driving the point home.