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1.
Where someone cuts an intentional hole in their t-shirt underneath their armpit to allow ventilation. Called so due to the steam from the armpit resembling a chimney with steam.
Matt: Damn it's hot!
Kyle: Why don't you make yourself a BO chimney?
by Kempo May 10, 2006

Words related to BO chimney

bo chimney hot rancid smelly stank stink