Weejaculation

When you've been dying for a piss for ages but have had to hold it in due to being in a crowded bar/talked to/nowhere near a toilet or shop doorway, the eventual act of urination can only be described as Weejaculation. Not only because of the speed that the fluid exits ones body, but because of the sensation produced. Makes people say "ahhhhhhhhhhhh" with their eyes closed and their head tilted back in sheer ecstacy.