Top Definition
The specific type of testosterone (male steroid hormone) released following bro-related activities such as getting your swell on at the gym, slamming hoes, bro-carting, and laxing.

The effects of testostebrone can be extended and enhanced by drinking brotein shakes.
After getting my swell on at the gym and banging that slam piece I met at the kegger last weekend, my testostebrone levels went over 9000.
by bro9000 February 24, 2011
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.