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#1 is urine, #2 is poo, #3 is The Third Great Detritus Export, aka Puke. Also referred to as a Third.
Mike, just to warn ya, if she drinks more than 7 beers, she's gonna #3 on your shoes.

"Drink a Fifth, do a Third."
by Fauntleroy May 10, 2007
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I don't want anybody else, when I think about you I #3 myself.
by Jackie and Christa November 22, 2003
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When one commits suicide by drowning themselves in the toilet.
Kevin was so depressed at work that he went to the restroom for a #3.
by operationorange May 07, 2013
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A sexually unattractive female of Indian origin.

To be considered a "#3" you must:

1) Have at least 5 inches of hair attached to the crouch area
2) Enjoy spreading your legs on couches for all to see
3) Have been downloaded at least once by Chirag
4) Be the ugliest son-of-a-mother-barbers-ass-sweat-comb
"Daaaammmmnnnn, that ugly bitch got a forest down there!"
"Yo guuuyyy, thats #3 yo!"
by Kevinsim95 October 04, 2004
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a # 3 is when a faggot diarrheas jizz out his dick taker
I heard when a faggot gets cum up his butt he takes a wicked #3
by Sandwiches McSandwich March 16, 2009
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Slang term for when your purpose of going to the bathroom is to both pee (#1) and poop (#2); believed to derive from the fact that 1+ 2 = 3.
Stan: Be back in a minute, gotta go to the bathroom!

Rick: Oh, #1 or #2?

Stan: #3, actually!
by Senor Fantastico March 01, 2021
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The act of taking a piss, shitting and jerking off all in one sitting.
This morning I was so hungover I took a #3
by RayFinkle69 September 28, 2018
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