from "avalanche" and "lunch"; a huge amount of people and orders that come to restaurants, bars etc. everyday during the lunch break, especially downtown where various institutions and offices are situated;
Harry: I'm off earlier today?
Jim: How earlier?
Harry: Earlier enough to avoid the avalunch. Haha!
Jim: Oh, come one, man! You can't leave me with these hordes of office-zombies swarming the place!
Harry: Chill out! Mike is coming to back you 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).