To smack up some booty. In the novel To Kill A Mocking Bird, Tom Robinson is asked to "come in an bust up the chifferobe" for Mayella Ewell. But upon entry into the house, Mayella makes swift sexual advances toward Robinson, hence, bust up that chifferobe means to smack up a fine piece of ass.
"Hey Jim, I saw you leave with that girl. You bust up that chifferobe?"
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).