Someone who takes a shit on a street corner or at a bus shelter or even on a bus cause he just cant be bothered to wait to go toilet.
by AGnumbnuts November 18, 2011
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A guy goes down on a girl (performing oral sex on her) while she takes a shit on the toilet. This is the girl version of a blumpkin.
I heard Blanche got a Russian Brown Bear, that dirty slut!
by PaisleyRoseVosberg December 8, 2008
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sexual act when 2 partners join assholes and one partner takes a shit into the other partners asshole then that partner shits it back into the other's asshole. Sharing the same shit multiple times.
Harry - Did you hear what Kenzie and Tessa did last night?

Dick - No, what did they do?

Harry - The did the Backwards Brown Bear last night while watching Brazilian fart porn.

Dick - That"s fucking haggard.
by happy panda 92 August 21, 2011
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A phrase referring to the abrupt stop of intercourse, initiated by the woman, where she turns around as if she is going to give oral please, but defecates on the face of her partner instead. She then immediately proceeds to wash away the feces with a steady stream of urine. Intercourse should then resume as if nothing happened.
Last night things were going great, until this chick gave me a brown bear, golden shower.
by TJamie January 5, 2012
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When a girl drops an AC Slater while giving a blumpkin to a guy taking an upper decker
Nick got a double barrel brown bear from Jessica last night
by Landers Nodi September 21, 2013
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The act of having a bowel movement. The idea being that the anus is synonymous with a dark cave, and the fecal matter being brown, is synonymous with a bear.
I will be in the bathroom for a while, I need to go let the brown bear out of the cave.
by Ninja Medic November 6, 2011
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