a turd, poop, shit, duece, etc.
I gotta go, a brown snake is playin peek-a-boo with my butthole
by rmfp August 22, 2006
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The action of shitting into a condom, than using it as a dildo.
Something Heather Carey would use as a dildo.

"Hey, Look! Heather is working that brown snake."
by TMyspace2000 July 26, 2009
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The colloquial name for the mighty Brisbane River, a river whose chocolatey brown appearance would inspire the envy of the candy man himself, William Wonka.

Legend has it the river got its infamous colour from the lack of amenities further upstream in Ipswich, though this is to be doubted since toilets have existed in Ipswich since at least 1866 during the reign of Sir John Murphy MBE. I personally believe they just do it for shits and gigs because Ipswich is full of crackheads.
"G'day cob, d'ya hear 'bout tha lil' fella who fell in the brown snake the other day?"
"Leave me alone Darren."
"Got his toes bitten of by a bull, mate. Ambos said there wasn't enough penicillin in the whole of Brissy so they just chucked him back in"
by majesticasf November 17, 2021
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Deadly venomous family of snakes found in Australia, particularly dangerous because of it's aggressive behaviour and wide habitat.
Strewth! I just stepped over a log and found a brown snake. Cranky bastard had a go at me too! It even chased me back a few metres before it slid off.

<OK, apologies for the gratuitous lingo.>
by Flex, Khan of Putnay September 23, 2006
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When you are getting a blumpkin, you must not stop there. When you are about to blow pull your cock out of the girl's mouth immediately get behind her and ram it in her brown eye and shove her head in the toilet and just make her bob for those brown snakes. 1 you have to have shit in the toilet to so this it is a requirement, 2 do not be a stupid fuck and drowned the girl, 3 have fun.
Emily didn't like it when I made her a Brown Snake Snorkler.
by Hugo Sticky-tits August 11, 2010
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to take a dump. the brown snake is of course metaphorical of feces due to their similar shapes.
by veh-jay-jay February 17, 2009
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To deficate; to take a shit; to take a dump; go number two etc..
Guy 1: You look a little sick are you okay?

Guy 2: No, it must have been something I ate. I got to go kill a brown snake.
by Crustache April 3, 2009
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