A hormone released when you are very angry and about to blow. This hormone helps release your inner beast, stimulating your anger and making you (temporarily) feel better.
adj. when something is so unbelievably awesome and fantastic that everyone simply stands in awe of it for several miraculous moments. I believe this word spawned off of the the word beastosity which is the noun form for such an event. see "beastosity level", a rating system.
last night i was tripping on acid and i started hallucinating about Santa doing the foxtrot with Satan in Toronto, man it was totally beastosterone.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.