I am now an ABR, thanks to this little peanut:
ABR stands for “Auntie by Relation,” according to the author of this book:
Time to crack open this book and work on my savviness. Do any of you ABRs or ABCs (Aunties By Choice) have any tips to share?
I am already thinking about Niyah’s betrothal to Prince George. No need to inform my brother just yet that his daughter will be attending the same college as Prince George. St. Andrews perhaps?
fancenance.com 
AH! CONGRATULATIONS! i accept an invitation to that wedding. 😉