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1.
A totally non-gay gathering of 7 or more males, in which there is much consumption of brewskies and much playing of the Halo 3. You might also see a guy flick on.
Cameron: dude you going to the festosterone tonight
Rick: i wouldn't miss it to miss it for sex.
by BadManClan April 16, 2009

Words related to Festosterone

brewskies festival guy guy night social testosterone