Top Definition
(noun) - a steroid hormone released by the mans deferens, during periods of intimate bromanship, that facilitates the engrossing of the corpus cavernosum resulting in a broner.
Mark and Todd spent Sunday afternoon together at the football game, and as the afternoon progressed, with both sharing pleasantries and enjoying a few alcoholic beverages, their levels of brogesterone steadily increased.
by kropwniski May 22, 2010

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