It's when you feel like you've got too much work to go to bed, but you are too tired to get anything done. So you just surf the net and procrastinate until you can't stay awake anymore.
Tom: Well I managed to get half of it done yesterday, but then I got stuck in sleepytime limbo and just stayed awake the whole night browsing through facebook...
The act of staying awake for 24 hrs and then dipping your balls in a women's mouth. As she sucks on them, the male jerks off and cums on her neck and chest. The male then immediately passes out asleep.
Babe, I can't fallasleep, are you up for some sleepytime tea?
When you feel like you have too much work to go to bed, but you're too tired to get anything done so you just surf the web and procrastinate until you can't stay awake anymore.
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).