pisstipation
Having to urinate very badly but being unable to no matter how hard you try.
The guy next to me at the urinals kept looking at my dong which caused severe pisstipation.
Pisstipated
When you feel like you have to piss, but nothing comes out, while you still feel like you gotta piss. The opposite of constipation.
Damn, Jane drank that whole gallon of water but she's been in the bathroom for an hour. She must be pisstipated.