The act of one's chair unexpectedly shooting from beneath them resulting in their ass hitting the floor.
I can't believe I just pulled a FatJake.
Ha Ha, Tiesha just pulled a FatJake.
Don't talk shit to me; I'll make you pull a FatJake.
Wow, that FatJake was really refreshing; Just what I needed to wake me up!
She pulled a FatJake in front of the humungous auditorium full of her colleagues.
I broke my backbone from pulling a FatJake.
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).