tikkunolamorgtfo:

Oh, also: In Ashkenazi culture, it’s considered bad luck to name a child after a living relative, because there’s a fear that the Malakh Hamavet (Angel of Death) would get confused when coming for an older relative and take the child sharing their name instead. So, as a result, Ashkenazim are generally only named after deceased relatives. 

HOWEVER, this leads to an amazing Yiddish phrase for telling somebody to fuck off, which is: “May a baby be named after you.”