To takepart in sexual activities in the backseat of a car that is being driven by someone without them knowing of the activities occurring in the backseat.
I hate it when my friend and his girlfriend are kickin' it in the back seat. I wasn't expecting to see that in the rear view mirror.
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).