Similar to Jerkmobile, a Jizzmobile is a Vehicle where a subject carelessly and sometime furiously masturbates in.
The difference between the two is that a Jerkmobile is far cleaner, as the wanker is more careful and actually cleans up after himself. A Jizzmobile on the other hand, shows clear evidence of the owner's masturbatory nature, as there are rags, T-Shirts and Cum Stains everywhere. It's best to stay away from a Jizzmobile if possible.
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.
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).