Top Definition
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.
I'm all jacked up on beastosterone, I'm about to go apeshit on your ass
by Will.I.Am22 October 21, 2009

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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.
by j-moné May 31, 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt