If you don't stay hydrated, the first thing our medical staff with do is take your temperature. To do this, they use something called "the rectal rocket."
n. Humorous insult, used to imply that the target is a homosexual, particularly one who dresses up in Spandex and rams a bottle of Tabasco-brand hot sauce into their rectum in the hopes that it will prolong their erection.
Go crack open another cold one, you prickfaced rectal rocketeer!
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.