Waking up from a night of absurd drinking to find that you slept with the most hideous, busted skank you've ever seen. A snook up makes a coyote ugly look like Miss America.
Dude, you drank so much last night that you passed by the double baggers and had a snook up.
When you are banging a girl against a wall, then you perform a shocker and right as you are about to cum, you go back into her vagina, attempting to knock her up.
"Last night I was banging my big tiddy goth gf, when I accidentally did the Shock up Knock up."
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).