The phenomenon where you cannot, no matter how hard you try, squeeze out one drop of piss, no matter how hard you have to go. Usually in a public facility.
Al came back from the bathroom and said "Holy frozen mixed vegetable cocks!, am i ever Cockstipated again"
by JustincredibleCalgaryFlames February 11, 2008
inability to urinate, especially in a public restroom.
I really have to piss, but I'm cockstipated now.
by Silence March 26, 2003