Harrypotteritus 

The all to common disease in which an ordinary muggle decides to act with increasingly erratic behavior, often making numerous references to the eponymous children's book series.

I think he's in the worst stage of harrypotteritus...

Harrypotteritus by eRomeo November 22, 2010

Harrypotteritis 

Harrypotteritis is an obsessive compulsive disorder in which the has an overpowering need to study, follow, and live in the mind and reality of Harry Potter.

Austin-Robyn, sorry to say but you have Harrypotteritis. and you can believe what I say. trust me, I'm a doctor.

Robyn- ok

Harrypotteritis by oble lover July 7, 2012