A much much much funnier way of saying you need to use the restroom facilites. Can also be used to describe the place itself...like the way the Brits say "I need to do a toilet" and you go to the toilet to do it. Works best when all present are drunk/stupid/already laughing hysterically. Also commonly used: urination celebration
Finish eating your pear, we need to go to the urination jubilation!
*pear is forgotten*