Number three 

Wee, pee, urinate.

Comes from the childrens nursery rhyme:

Number one, tickle my bum

Number two, do a big poo

Number three, go for a wee

Don't drink too much before bed you'll have to go number three in the middle of the night

Number three by Jazpur October 29, 2011

Number three 

Rhyming slang for wee or pee (urinate).

Same as 'number two' is rhyming slang for poo.

Are you going to the toilet to do a number two or number three?

Number three by StephenSLR August 26, 2011

number three 

Taking a shower immediately after dropping anchor. It's called a number three because it should ALWAYS follow a number two. If you don't agree, then here is what will convince you: If you get poop on your hand and wipe it off with a dry piece of toilet paper YOUR HAND WILL STILL SMELL LIKE POOP! (shock)

Aaron Desselle always goes home from work to take a number three. His butt is clean right now.

number three by a-diggity June 29, 2004

number three 

ecstasy.

Due to a ranking of drugs. It's still in the works. All drugs have not been tried/ranked yet.

see number two

What are you doing tonight?
About to get me some of that number three.

What are they on right now?
They are hella number threed out!

number three by Urban Dictionary March 30, 2009

number three 

The act of masturbating into a toilet.

He said he was going to the restroom for a number three.

number three by mrhh69 May 13, 2015

Number Three 

The dreaded third shit of the morning, usually hits as soon as you either take a shower or leave the house.

My god that cheap draft is haunting me now! Number Three came knockin as soon as I walked out the door!

As I was drying off after a hot shower, number three hit with a vengeance not often seen in this universe and I had to dirty my clean arse....goddammitt!!

Number Three by Lunicus February 9, 2013

Number three 

Mixture of pee and poop - diharreah.

Number one - Pee
Number two - Poop
Number three - Diharreah

Number three by holymoley222 December 22, 2013