piss jitters
The feeling you get when you urinate.
"Do you ever shiver when you pee? Yeah, I get the piss jitters every time!!"
Piss jitters
When you have been needing to pee but you neglect going, resulting in you shaking uncontrollably in short bursts.
I needed to urinate so badly that i got the piss jitters, i looked like Michael J Fox.