The unexplained feeling of bliss, joy and satisfaction one gets following a purchase. It can last anything from a few hours to a few weeks depending on the size, worth or usefulness of the item acquired. Buyer's remorse can sometimes follow or replace purchase pleasure. It is often a reason for shopping addiction.
Laura-May: Hanging out and shopping with you yesterday made me really happy.
Grant: Me too, but then I'm always happy when I buy things. I'm still getting purchase pleasure today.
#2: I'm not sure I want to go anywhere today honey, I've had a miserable week at work.
Come on, I'll take you to the mall. You'll forget your problems with some purchase pleasure.