Cranky + Constipated. When you are cranky cuz you need to poop.
Defecating is often accompanied with symptoms of happiness, pleasure, and satisfaction.
We fought grandma because she kept stealing our oats, and over and over she just kept yelling "I'M SO CRANKSTIPATED."
When someone tries to dance but looks more like they need to take a big poop instead. This action may be accompanied by a look of intestinal distress upon the face of the Crunkstipated one.