3. Someone who isn't happy unless they're UNhappy.
Debbie mentioned she was coming down with a cold. Penny, the gripemeister, said, "I've had this cold for a month! My head feels like it's been run over by a truck, my body feels like it's tied in knots, my nose is running like the Amazon, but (A-CHOOOOOOO! Here...have some), I'll probably live."
When your friend serves you a meal from his/her barbeque and you don't like it. You express your dissatisfaction by taking a full on shit on the grill, where your food was cooked. You cover it up and the let the heat do its work.
Gregg put an avocado on my hamburger. I asked myself ,"Who puts an avocado on a burger?!" I left Gregg a grillmaster to demonstrate my outrage.