Definition of Scrapbooking
scrap-book-ing n. (scrap'booking) 1. obsessive compulsive disorder consisting of pouring your grocery money and savings account into a blank book in such a way that makes the act justifiable. 2. Causes euphoria and giddiness in those afflicted. 3. Common ailment among scrapbookers for which there is no known cure.

(I got that off another blog: kclukesmom.blogspot.com)

I would add a 4. Causes a rollercoaster of emotions in friends and family due to them feeling ignored when you are scrapping to feeling happy and special when you show the pages you have completed that are all about them.