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8.
Taking a crap so big that it exceeds Number 2 status. A crap so large that you only see, hear about or experience it on a few occasions a lifetime. It is so big a plunger can't even begin to have an effect on it.
Man I wouldn't go in there because Johnny just took a Number 3 and a plumber is on the way to unclog the pipes.
by BackDoorMan84 August 31, 2014
 
9.
Pooping and vomiting at the same time. The vomiting is often done in an adjacent trash can, but when one is unavailable, the person has no choice but to de-throne and vomit in the dirty poo water toilet or else on the floor. Neither option is desirable, that's why people keep trash cans next to the toilet. Also known as taking a Lauren.
Last night was pretty rough, I just took a messy number 3. I need to brush my teeth.
by Agent Brian December 04, 2012
 
10.
Firing on all cylinders. Pooping, peeing, vomiting, expelling snot, shooting ear wax - all at the same time.
"Oof"

"What is it, number 1? Number 2?"
"No, worse. Number 3! Stand clear!"
by Pdg887 July 02, 2013
 
11.
The beer shits. Also known as pissing out your ass or shitting through a screen.
"Dude, I drank too much Mickey's last night and need to take a number 3."
by k-l-s August 13, 2008
 
12.
Getting Freaky Down There.
Slow And Steady.
Yeah yesterday she was doing number 3..
by Eddie May 20, 2006
 
13.
Pee, wee, urinate
Comes from the childrens nursery rhyme:

Number 1, tickle my bum
Number 2, do a big poo
Number 3, go for a wee
by Kellygirl February 11, 2012
 
14.
When a woman has to go to the bathroom to change her tampon/pad, or "push out some blood."
Pull the car over honey, I need to use the bathroom. Number one or number 2. Neither, number 3- I need to change my tampon.
by wordelder June 23, 2011