Lacking number 4 

This phrase means that a person is lacking in intelligence, not through any form of retardation but a lack of trying.

Brittney: "What is an Intelligence Quotient?"
Teacher: "You mean an IQ, the thing we have been discussing for the last 10 minutes."
Friend of Brittney: "Seems like your lacking number 4."

Lacking number 4 by Andres Gonzalez February 8, 2008

page number next 

page number next is the number of the next page you will be turning to. It could pretty much mean any page in the book you are reading, but my teacher seems to get along fine telling us to go to page number next and page blue book.

Alright students, turn to page number next in the other book.

What was your favorite part of the book Cathy?
Well, I especially enjoyed page number next when that thing said that stuff.
Ooh, that's my favorite part too.

page number next by Big mac or Mac Attack June 29, 2008

runner number 

the number given by a runner (someone who buys drugs for minors) to the teens so that they can call him/her if they need something.

Yo that guy gave me a runner number.
Great now we dont have to steal the vodka from my parents.

runner number by UrbanlegenD786 June 8, 2009

Trollback Number 

Any type of address that one is trolling from.

Troll: Trolling

Guy1 to Guy2: Get me his Trollback Number, I'm going to troll him back.

Trollback Number by tdizzle159 November 6, 2011

Farrell Number 

The ratio of alcohol in a beverage to price of the beverage.

10 for a 20oz pint of %6.5ABV beer has a Farrell Number of 3.84mg/$

Farrell Number by cgf February 8, 2015

mollys number 

A inside slang word for asking if someone has the drug molly

Hey, yo you got mollys number cuz I wanna party tonight

mollys number by Gmoney9735 July 13, 2017

the number 3 

a lie

the number 3 is a lie

the number 3 by antonsv December 19, 2017