Number 3 

To ejaculate. Urine is numerb 1, poo is number 2, cum is number 3.

I want to go number 3 in Taylor Swift.

Number 3 by Doc Bliss August 6, 2016

number 3 

unlike number 1 and 2, number 3 is masturbation

i need to do a number 3

number 3 by alien ed May 27, 2008

number 3 

Having diahrrea or the action of urinating and passing a bowel movement at the same time.

Gretta: "I have to go the bathroom real bad!"
Marla: "Is it #1 or #2?"
Gretta: "Its worse! I feel a #3 comin' on!"

number 3 by gretta March 21, 2005

Number 3 

To go both number 1 and number 2 at the same time
Both pee and poop

I mostly go number 3 so I feel much better now

Number 3 by Inugami98UwU June 30, 2020

Number 3 

The act of sexually pleasuring one's self in a destructive or graphic manner

Phil, i'll be back, i'm doing a quick number 3

Number 3 by TheSlipperyCheezeWhiz October 27, 2020

Number 3 

When you go to the bathroom to pleasure yourself. You're not going number 1 or number 2.

"You ate too many oysters at lunch and began running hot, so you went to the bathroom to go number 3."

Number 3 by Mr. Account Manager February 19, 2010

number 3  

Restroom term for diarrhea. If number one is urinate and number two is defecate than number 3 is both at the same time.

Pissing out your butt.

Hershey squirts.

I had number 3 all morning after a night of drinking draft beer!

number 3 by Max Pontiac December 21, 2006