A day that celebrates the birth of each of your Grandchildren and the day that you became their Grandparent. Celebrated each year in on the same day as their birthdays.
Nana, it's my Birthday, today. Yes, and it's my Nannaversary too, I became an Nana the day you were born, and I Love you very much.
'Nannah' is the Harry Potterfanfiction name for Neville Longbottom + Hannah Abbott.
It is less common than nuna which refers to Neville and Luna Lovegood.
Nannah is a canon couple.
(Luna Lovegood marries Rolf Scamander who is the grandson of Newt Scamander)
Friend 1: WOAH! Nannah actually happened?
Friend 2: Yes it did but I much prefer nuna...