Of or relating to a high status of {brodom}. Usually insinuating membership to a fraternity and commonly associated with several distinct features, behaviors, or mannerisms common of individuals who are part of a fraternity.
When an absurdly large amount of bros gather in a common location to partake in bro-like activities, such as: wearing Affliction t-shirts, showing off one's Nautilus tattoo, driving one's raised Ford Truck 350 with a flame paint job, sporting black sunglasses outside at 8pm, threatening to "punch out that little bitch" at a nearby bar, and generally making a mockery of well-accepted human mores and ethics.
"Dude, a surfing competition and a UFC PPV on the same day IN downtown Huntington Beach?! That's friggin' Brosanity!"
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).