Top definition
A mysterous, anxiety causing, possibly Fictictous letter allowing you to finially enter the promised land known as Pottermore.

The reason one million potterheads have been on their email 24/7 sence finding the magic quil.
Pottermore Welcome Letter. Aka: A real Santa Caus

"Why'd Jill Get fired?'
" She called off to watch her email everyday sence August 7th 2011"

" Doesnt she know she can access her email and get her welcome letter on her phone...."
by Dreamblade24 August 19, 2011
Get the mug
Get a Pottermore Welcome Letter mug for your mate Yasemin.