When a gassy gay man decides to take it in the butt during sex, and uncontrollably releases his fart while the other man's penis is lodged inside of his anus.
by BBBauer February 18, 2014

A sexual act generally perfomed with both partners consuming a large quantity of taco dip, smothering their bodies in buffalo sauce and blue cheese dressing, followed by rough anal intercourse over a plate of buffalo wings until defecation.
There was supposed to be a pool party at Drew's house but it was raining out so we stayed inside and did a buffalo steamer instead.
by Chicken Man February 7, 2017

A form of hypocrisy. The act of criticizing someone for a certain act and then proceeding to unwittingly do that same thing. This can also be referred to as a Palin-drome.
The woman who sees Russia from her house just dropped an anchorage steamer on America- she criticized the media for politicizing the Arizona shooting and then implied that the shooter was a liberal.
by jonstewartfan January 19, 2011

A sexual act in which one deficates onto the chest of thier partner. So named for it's resemblance in color to Belgian chocolate and the body heat of the "depositor".
by Zkilla February 2, 2006

A technique refined by world class researchers at Brown University where one autoclaves a large quantity of marijuana and recirculates the air in the building.
by Weed Browny September 7, 2005

by Quinn McCormack December 9, 2008

The act of taking a shit on someones chest before during or after sex (can be used as a punishment, break up tactic or fetish act) Very similar to the Cleveland Steamer, but with the Boston Steamer, you also tea bag her with you nut-sack while taking the shit.
by AT Facials June 11, 2004
